Four Days' Battle
|Four Days' Battle|
|Part of the Second Anglo-Dutch War|
The Four Days Battle by Pieter Cornelisz van Soest
|Kingdom of England||Dutch Republic|
|Commanders and leaders|
|79 ships||84 ships|
|Casualties and losses|
The Four Days' Battle, also known as the Four Days' Fight in some English sources and as Vierdaagse Zeeslag in Dutch, was a naval battle of the Second Anglo-Dutch War. Fought from 1 June to 4 June 1666 in the Julian or Old Style calendar that was then used in England, in the southern North Sea, it began off the Flemish coast and ended near the English coast. It remains one of the longest naval engagements in history. Dutch accounts referred to its dates as 11 June to 14 June 1666 by using the New Style calendar.
The Dutch inflicted significant damage on the English fleet, which lost ten ships in total, with over 1,000 men killed, including two vice-admirals, Sir Christopher Myngs and Sir William Berkeley, and almost 2,000 English were taken prisoner including a third vice-admiral, George Ayscue. Dutch losses were four ships destroyed by fire and over 1,550 men killed, including Lieutenant Admiral Cornelis Evertsen, Vice Admiral Abraham van der Hulst and Rear Admiral Frederik Stachouwer. Although the result was a clear Dutch victory, it did not render the English fleet incapable of further action, as it was able to prevent a Dutch attempt to attack and destroy it at anchor in the Thames estuary in early July. After quickly refitting, the English fleet defeated the Dutch fleet off the North Foreland on 25 July in the St. James's Day Battle.
The introduction of sailing ships with a square rig, of a type later called the ship of the line, which were heavily armed with cannon, brought about a gradual change in naval tactics. Before and during the First Dutch War, fleet encounters were chaotic and consisted of individual ships or squadrons of one side attacking the other, firing from either side as opportunities arose but often relying on capturing enemy ships by boarding. Ships in each squadron were supposed to support those in the same squadron, particularly their flag officer, as their first priority. However, in the melee of battle, ships of the same squadron frequently blocked each other's fields of fire and collisions between them were not uncommon.
Although Lieutenant-Admiral Maarten Tromp had formed a line against the Spanish fleet in 1639 in the Action of 18 September 1639, this was not a planned formation but a desperate attempt to hold off a greatly superior, but badly organised, enemy. The initial sea battles of the First Dutch War were largely indecisive melees, but later in that war Robert Blake and George Monck issued instructions for each squadron to stay in line with its flag officer. At the Battle of Portland Tromp's attempt to overwhelm the English rear by concentrating his whole fleet against it and using his favourite tactic of boarding was frustrated by the English rear remaining in line ahead At the Battle of the Gabbard, the English fleet in line ahead forced the Dutch into an artillery duel that defeated their more lightly-armed ships with a loss of Dutch 17 ships sunk or captured.
Between the first and second wars, the Dutch built some larger ships with heavier armament, although the shallow waters around the Netherlands prevented them building ships as big as the largest English ones: additionally, English ships of the same size tended to have more and larger guns than their Dutch equivalents. However, many of those the Dutch built were relatively small convoy escorts, frigates by English standards, and not all those planned had been completed or fitted out by the start of the war in 1665. At the time of the Second Dutch War, the English fleet also had a signalling system which, if still rudimentary, was better than the Dutch reliance on standing instructions to fight in line. In the Battle of Lowestoft and the St. James's Day Battle, the English fighting in line ahead defeated the Dutch who did not. De Ruyter favoured the tactic of concentrating his attack on a portion of the enemy's line, so achieving a breakthrough, and the capture of ships by boarding. However, in the Four Days’ Battle the Dutch generally fought in line, and the English fleet did not do so, at important stages in the fighting.
From early in the 17th century, the Dutch navy had used fireships extensively, and in the First Anglo-Dutch War at the Battle of Scheveningen, Dutch fireships burned two English warships and an English fireship burned a Dutch warship. The Dutch in particular increased the number of their fireships after the outbreak of the Second Anglo-Dutch War but, at the Battle of Lowestoft, it was two English fireships that burned six Dutch warships which had collided and become entangled with one another. However, the limitations of fireships when used in open waters was demonstrated during the Four Days’ Battle, where many where destroyed while trying to attack well-armed ships able to manoeuvre freely. The surrender of the English HMS Prince Royal when attacked by several Dutch fireships after it had run aground because of the panic this attack caused only demonstrated that fireships were useful against warships that were stationary or in confined harbours, but not those able to move in the open sea. However, this overall lack of success in this battle did not prevent both sides adding more fireships to their fleets.
The war in 1665
Second Anglo-Dutch War arose from an escalation of existing commercial tensions between England and the Netherlands in 1664, involving English provocations in North America and West Africa. Although negotiations to avoid the outbreak of war took place throughout much of 1664, both sides refused to compromise on what they considered were their vital interests in these two areas and in Asia, and hostile acts by each side continued despite diplomatic efforts to avoid war. Louis XIV of France was intent on conquering the Spanish Netherlands and had signed a defensive treaty with the Dutch in 1662, with the intention of dissuading other countries from intervening if France invaded the Habsburg territories there. The existence of this treaty strengthened the Dutch resolve not to make significant concessions, as Johan de Witt believed it would prevent England declaring war. Charles II and his ministers hoped, firstly, to persuade Louis to repudiate the Dutch treaty and to replace it with an Anglo-French alliance, although such an arrangement would not assist Louis' plans for the Spanish Netherlands and, secondly, to strengthen English relations with Sweden and Denmark, both of which had significant fleets. Although neither plan succeeded, Louis considered an Anglo-Dutch war unnecessary and likely to obstruct his plans to acquire Habsburg territory., Charles' ambassador in France reported the French opposed such a war and this gave Charles the hope that, if the Dutch could be provoked into declaring war, the French would evade their treaty obligations which only applied if the Dutch Republic were attacked, and refuse to be drawn into a naval war with England. The war commenced with a declaration of war by the Dutch on 4 March 1665, following English attacks on two Dutch convoys off Cadiz and in the English Channel.
De Witt also achieved the completion of many new warships, ordered during the early stages of the war to augment the existing fleet, including several large ships comparable in armament to the all but the largest English ones. These had been given greater constructional strength and a wider beam to support heavier guns. Although several of these ships had not been available to the Dutch fleet at the Battle of Lowestoft, they had been completed and fitted out after it. The Dutch fleet had been confident of victory when it sought out and fought the English fleet in the Battle of Lowestoft in June 1665, but it suffered the worst Dutch defeat in any of the three Anglo-Dutch wars, with at least sixteen ships lost, and one-third of its personnel killed or captured. De Witt quickly saw that men were critical, not materiel: he sought to deal with the insubordination, lack of discipline and apparent cowardice among captains by executing three and exiling and dismissing others. De Witt also turned to de Ruyter, rather than Cornelis Tromp who had previously been given temporary command, to lead the Dutch fleet because of his seniority and political neutrality: de Ruyter assumed command on 18 August 1665 and he transferred his flag to the newly commissioned Zeven Provinciën on 6 May 1666.
Although the English had defeated the Dutch at Lowestoft, they failed to take full advantage of their victory. Despite the loss of ships and at least 5,000 men killed, wounded or captured, the escape of the bulk of the Dutch fleet frustrated the possibility of England ending the war with a single overwhelming victory. In another reverse to English hopes of an early and successful end to the war, the rich Dutch Spice Fleet managed to return home safely after defeating an English flotilla that attacked it at the Battle of Vågen in August 1665. The Dutch navy was enormously expanded through the largest building programme in its history. In August 1665 the English fleet was again challenged, though no large battles resulted. In 1666, the English became anxious to destroy the Dutch navy completely before it could grow too strong and were desperate to end the activity of Dutch raiders which threatened the collapse of English maritime trade.
After Lowestoft, English warships and privateers blockading the three main entry and exit points where Dutch merchant shipping concentrated, namely Texel, the Maas river and off Zeeland temporarily paralysed Dutch overseas trade and weakened Dutch business confidence. The existence of five admiralty colleges, each with its own policies on ship construction and armaments, each favouring its local commanders and with variable levels of efficiency, and the reluctance of Johan de Witt to appoint Orangist officers, all led to difficulty in creating a unified navy.
At Lowestoft, the English Fleet was commanded by James, Duke of York, who was heir presumptive to his brother Charles II as well as Lord High Admiral of England. In view of the significant number of casualties among senior English officers and noble volunteers, including three killed next to the Duke, Charles insisted that his brother should no longer command at sea. The command of the English fleet was therefore entrusted jointly to Prince Rupert, a cousin of Charles and James, and the Duke of Albemarle.
Louis had tried to act as mediator in July and August 1664 to prevent war being declared, but England did not accept his offer. After Battle of Lowestoft, and concerned that the complete destruction of the Dutch fleet would leave the English fleet in a position to interfere with his plans in the Spanish Netherlands, Louis again offered mediation, but as he had already sent French troops into the Netherlands to assist the Dutch, and had also attempted to bring Denmark into an alliance with the Dutch Republic and France that was designed to put pressure on England, his credibility as mediator was undermined. In response to its rejection of his mediation, Louis XIV declared war on England on 16 January 1666. The greater part of the French fleet was in the Mediterranean under the duc de Beaufort, and Louis intended that much of this would be brought into the Atlantic to join up with the Atlantic squadron commanded by Abraham Duquesne. The combined French fleet would then, it was intended, link up with the Dutch in the English Channel and the two would outnumber the English fleet.
Louis’ plans were based on the assumption that the Dutch fleet would be at sea in time to be able to prevent the English fleet attacking the weaker French fleet in the western English Channel. However, the Dutch could not undertake to be at sea to provide cover for Beaufort until 21 May. As a result, Beaufort, who left Toulon in April 1666 with 32 fighting ships, delayed at Lisbon for six weeks while the Four Days' Battle was fought. Duquesne, who initially had 8 and later 12 ships, was ordered to join Beaufort at Lisbon so that the combined French fleet would be less vulnerable to a possible English attack before it could join the Dutch, although the two failed to meet and Duquesne returned to Brest while Beaufort stopped at Rochfort.
Division of the fleet
The French intention to bring the bulk of their Mediterranean fleet to join the Dutch fleet at Dunkirk was known to Prince Rupert by 10 May and discussed by Charles and his Privy Council on 13 May. The next day, two privy councillors were delegated to discuss the matter with Albemarle. The delegates recorded that Albemarle would not object to detaching a squadron under Prince Rupert to block the Strait of Dover, provided he were left with at least 70 ships to fight the Dutch. Rupert selected 20 generally fast or well-armed ships from the fleet and was instructed to collect any extra ships that might be available at Portsmouth or Plymouth. Rupert's initial instructions were to attack Beaufort's fleet, whose original 32 ships included several weakly armed, poorly manned or slow vessels. However, once it was known that Duquesne's squadron was intended to join Beaufort, Rupert was instructed only to attack the French fleet if it was at anchor or was attempting an invasion, but otherwise to rejoin the main fleet as soon as he had encountered Beaufort or had credible information that the French fleet was not close enough to be a danger. In the event the French fleet did not appear.
Although Albemarle has been accused either of the responsibility for dividing the fleet or complacency for accepting the loss of Rupert's squadron, it is clear that he counted on having at least 70 ships to face the Dutch fleet, even after Rupert's squadron of 20 ships had been detached. When he spoke to the privy councillors on 14 May, the nominal strength of the fleet assigned to the joint commanders was over ninety, although at least a dozen of these had not joined the fleet at the mouth of the Thames and three ships then with the fleet later returned to port. Four of the missing vessels had been refitted but could not be fully manned in time to join the fleet, three were being repaired and five newly-constructed ships which had been expected to join in May were delayed by difficulties in manning and victualing them. Much of the problem was that Charles II and his ministers had planned for a short war, but keeping a large fleet in being for a year after the partial victory of Lowestoft put demands on English public finances in 1666 that were almost impossible for it to meet.
Albemarle became increasingly concerned about the small numbers of ships under his command at the mouth of the Thames as May progressed, particularly after he received intelligence that the Dutch fleet was preparing to leave its harbours. He wrote three times between 26 and 28 May to the Navy Board and to Lord Arlington, one of Charles II's Secretaries of State. In each case, he reiterated his commitment to fight the Dutch fleet with 70 ships but, as he had only 54 ships on 27 May and 56 ships on 28 May, he requested a decision on whether he had to fight a much superior Dutch fleet or could retreat. His final letter, to Arlington, amounted to him asking for specific instructions to decline battle if this disparity in numbers persisted.
The response from the Duke of York contained no instruction for Albemarle to decline battle if he had less than 70 ships, but left him discretion to make the decision. In part, this was because Charles and his ministers believed that the Dutch intended sail around the north of Scotland to join the French fleet before attacking the British fleet, so that Albemarle had time to increase the size of his fleet. However, the intelligence relied on was faulty and, at the start of the battle the English fleet of 56 ships commanded by Albemarle was outnumbered by the 85 warships in the Dutch fleet commanded by Lieutenant-Admiral Michiel de Ruyter. Five ships joined Albemarle on 3 and 4 June, before the return of Rupert's squadron.
On the day before the battle, the Dutch fleet comprised 72 large warships, 13 smaller warships classed as frigates, 9 fireships and an auxiliary force of 8 despatch yachts and twenty galleys, disposing of 4,200 guns and manned by 22,000 crewmen, constituting the largest and most powerful Dutch fleet up to that time. De Ruyter had been informed that day by a Swedish merchant ship that it had seen the English fleet, which it estimated at 80 ships, off the Kentish coast two days before.
First Day, morning
Albemarle reorganised the squadrons of his fleet on account of the detachment of Rupert's ships and made the consequent changes in flag-officer appointments at a council of war in 30 May. The next day, when the Dutch fleet was north of Nieuwpoort, de Ruyter also called his captains to his flagship to receive their final orders. When the Dutch fleet anchored that evening, it was only 25 miles from the English fleet. On the morning of 1 June, both fleets set sail early and, around 7am, some Dutch ships were sighted by the English fleet. During the course of the morning it became clear to Albemarle that there were at least 80 Dutch warships: he consulted his flag-officers and they decided that, as it would be difficult to withdraw into the Thames estuary with the Dutch in close pursuit, they would have to fight. However, as the high winds and rough sea were disadvantageous for fighting, they expected to do so only after the weather improved. Albemarle also sent a message to Rupert by the Kent to rejoin him if possible.
The weather conditions in the morning had caused the Dutch fleet to anchor, and around noon Albemarle, realising that the Dutch fleet at was anchor and unprepared, decided to exploit the opportunity to attack the Dutch rear squadron under Lieutenant-Admiral Cornelis Tromp despite the adverse weather, in the hope it could be crippled before the Dutch centre and van could intervene. The English fleet was not in regular battle order, but at 12.30 Albemarle ordered it to attack, with his red squadron and George Ayscue's white squadron mixed together in the lead and Thomas Teddiman's blue squadron forming the rear. De Ruyter, who did not expect the English fleet would attack in wind and sea conditions in which many of its ships could not safely operate their lower gun batteries, was taken completely by surprise by this attack, but Tromp who was closest to the English fleet ordered his ships to cut their cables, and they sailed to the south-east, followed by the rest of the Dutch fleet.
The Dutch fleet had been anchored in a line running north east from Tromp in the rear to its van under Cornelis Evertsen the Elder, so only 30 or 40 ships of its rear under Tromp and some from its centre under de Ruyter could initially form a battle line against the whole English fleet. As the English fleet held the weather gauge, it could have pressed an attack on the initially outnumbered Dutch but many English ships failed to come into close action. This failure, and Tromp's prompt action in getting his division underway, frustrated Albemarle's attempt to put Tromp's squadron out of action. After three hours during which neither side inflicted much damage in the other, Evertsen's squadron started to come into action and, by sailing through gaps in the English blue squadron or crossing its wake, gained the weather gauge against that part of the English fleet.
First Day, afternoon
By 5pm, the advantage of numbers had passed to the Dutch fleet, which was attacking the English blue squadron in the rear on both sides. Around this time, two Dutch ships caught fire, the Hof van Zeeland of Evertsen's squadron and the Duivenvoorde of Tromp's. Both were lost with most of their crews and two other Dutch ships had to deal with serious fires. Some survivors later claimed that these ships had been hit by "fiery bullets", and a type of ammunition consisting of hollow brass balls filled with a flammable substance did exist, however other Dutch eyewitnesses thought that flaming wads from the two ships’ own guns, blown back by the strong wind, had caused the fires.
As both fleets were heading for the shallow waters off the Flemish coast, and as his blue squadron was under heavy attack, Albemarle ordered ships of the red and white squadrons to wear to the northwest at around 5.30pm. Most of the red squadron saw the signal and wore in succession. The white squadron, with some red squadron ships in support, under Vice-Admiral Sir William Berkeley continued on a south-easterly course for another hour, as it had its own problems to deal with. By 6.30, Albemarle was leading the white squadron followed by the blue squadron northwest against Evertsen's squadron sailing southeast and engaged it at close range. De Ruyter's squadron facing no opponents, used the respite to make temporary repairs, and Albemarle and Evertsen's ships did the same after passing each other.
To the southeast, Tromp's ship Liefde was in collision with Groot Hollandia, and both fell out of line. Vice-Admiral Sir William Berkeley saw this as an opportunity to redeem his reputation, damaged by accusations of cowardice at Lowestoft, and attacked with his own ship, HMS Swiftsure, with little support from other English ships Immediately, Callantsoog and Reiger came to the rescue of their commander, destroying the rigging of the English ship with chain shot; the Reiger then managed to board the Swiftsure after first being repulsed. Berkeley was fatally wounded in the throat by a musket ball, after which the Swiftsure was captured. The ship's lieutenant was found in the powder room with his throat cut; it was claimed that he had tried to blow up the ship but, after his own crew had drenched the powder, he had cut his own throat rather than being taken prisoner
Two other ships from the white squadron shared the fate of the Swiftsure. The Loyal George had tried to assist the Swiftsure but was also captured and the damaged HMS Seven Oaks (the former Sevenwolden) was captured by the Beschermer The embalmed body of Berkeley, after being displayed in The Hague, was later returned to England under a truce, accompanied by a letter of the States General praising the Admiral for his courage. HMS Rainbow, one of the scouts who had first spotted the Dutch fleet, became isolated and fled to neutral Ostend, chased by twelve ships from Tromp's squadron.
By 7pm, De Ruyter's squadron had completed its repairs and it advanced with the support of Evertsen and Tromp to attack Albemarle's ships, which had been reinforced by the white squadron. The reunited fleets twice engaged each other, with the Dutch fleet first sailing southeast then northwest, with the English fleet sailing in the opposite directions. One English ship, the Henry was badly damaged and left behind when the rest of Albemarle's fleet turned northwest and was attacked by Dutch fireships after she had undertaken repairs and had tried to rejoin the fleet. The Henry managed to fight off three fireships although losing a third of her crew and, with its last shot at the Dutch ships barring the route to Albemarle, it killed Evertsen before escaping to Aldborough.
As the two fleets drew apart and anchored for the night around 10pm, the Dutch could feel satisfied with having survived the attempt to cripple Evertsen's squadron while at anchor or when it was outnumbered by the British fleet, and with having captured three English ships and forced three more out of the battle against a loss of two of their own to fire, although others on both sides were damaged and several Dutch ships had returned to port for repairs. The loss of Evertsen was also greatly mourned. However, Tromp had failed to anchor at the same time as the main Dutch fleet, and his squadron consequently lost contact with de Ruyter.
Second Day, Albemarle's attack
The morning of 2 June was sunny and warm, with a light south-westerly breeze. At dawn, de Ruyter had only 53 warships under his direct command, as Tromp with twelve others had been separated when night fell. Tromp came into sight soon after dawn but was some miles astern of the rest of the fleet when fighting started. Another twelve Dutch ships had chased the Rainbow towards Ostend and were missing for most of the day, and others on both sides had returned to port for repairs, leaving de Ruyter and Tromp with 65 ships to face Albemarle's 48.
Albemarle made the understandable mistake of believing that the significant reduction in the size of the Dutch fleet in sight was the result of English gunfire, and attempted to destroy the Dutch fleet by a direct attack starting at 6am, initially sailing south in the hope of isolating Tromp, then to the southeast, with the main Dutch fleet moving northwest. At about 7.30, the two fleets began fighting at close range as they passed each other. During the morning, in light winds, the two fleets passed and re-passed several times, with ships from each side sometimes breaking through the other's line during these passes: Tromp able to join the rear of the Dutch line during this period. Although the English fleet thought these were a reinforcement of new ships, about the same time Albemarle received a message that Rupert and his squadron were returning and would provide welcome assistance when they arrived
The first two passes went badly for the English fleet, with HMS Anne, HMS Bristol and the hired Baltimore forced to return disabled to the Thames. After this, at about 10am, the wind died just as the two fleets had separated and they were becalmed for an hour. When fighting resumed, de Ruyter in De Zeven Provinciën crossed the English line which was sailing to the southeast, and gained the weather gauge. His intention was to abandon line ahead tactics and to make an all-out attack on the English, boarding and capturing their ships, and had ordered the red flag to be raised, to signal this intention.
Second Day, Tromp's difficulties
Before he could attack the enemy line, it became apparent to de Ruyter that Tromp and seven or eight ships of the rear squadron had not gained the weather gauge and were now isolated to the leeward side of the English red squadron without support, and under attack from ships of that squadron under vice admiral Sir Joseph Jordan. It is unclear whether Tromp had not had seen De Ruyter's signal flags or had decided not to follow his orders, but within minutes six of his major ships, including his replacement flagship Provincie Utrecht had suffered major damage to their masts and were vulnerable to English fireships, which managed to burn his former flagship Liefde. The Spieghel, on which Vice-Admiral Abraham van der Hulst was killed by a musket shot, was attacked by three English ships of the red squadron and left disabled.
However, the remainder of Tromp's ships were saved by de Ruyter who, with Vice Admiral Johan de Liefde, broke through the English blue squadron and drove off the English ships attacking Tromp while the rest of the Dutch fleet under Aert van Nes headed south, preventing the English blue squadron and the remainder of the red from joining Jordan in attacking Tromp. De Ruyter's careful planning, keeping the centre and rear of the English fleet occupied while he rescued Tromp was in contrast to Berkeley's impetuosity of the previous day. However, he had taken a considerable risk, as George Ayscue, seeing the de Ruyter and Tromp in a vulnerable position, had turned his white squadron north to try to isolate them. Ayscue was criticised for not pressing the disordered Dutch more closely, although his ships were also vulnerable to van Nes who had begun to turn north and could have joined de Ruyter quite quickly if the latter were attacked.
Tromp then visited de Ruyter to thank him for the rescue but found him in a dark mood. De Ruyter had been forced to call off his plan for an all-out attack in the English fleet so that Tromp could be rescued, during which time Vice-Admiral van de Hulst and Rear-Admiral Frederick Stachouwer had both been killed. The list of ships leaving the Dutch fleet was growing: the Hollandia had been sent home together with the Gelderland, Delft, Reiger Asperen and Beschermer in order to guard the three captured English vessels. Now the damaged Pacificatie, Vrijheid, Provincie Utrecht and Calantsoog had also to return to port. The Spieghel had to be towed by the less damaged Vrede and, the damaged Maagd van Enkhuizen left next day for the Netherlands.
De Ruyter's fleet, reduced by its losses to 57 effectives, re-formed its line to face 43 English ships, some hardly effective, and both fleets now passed each other three times on opposite tacks. On the second pass De Zeven Provinciën lost its main topmast and De Ruyter withdrew from the fight to supervise repairs to his ship, delegating temporary command to Lieutenant-Admiral Aert van Nes. He was accused of attempting to pass the responsibility for any defeat in the uncertain contest to van Nes, but there was no established rule at that time about when admirals should change ships: Albemarle had remained on the Royal Charles the previous day when it anchored to refit during the fighting without his conduct being questioned.
Van Nes commanded the Dutch fleet on its next three passes. As it held a leeward position, its guns had greater range which, with its superior numbers, made it clear by the early afternoon that the day's outcome could be decided by attrition. Some English ships were dreadfully damaged, the merchantman Loyal Subject and another ship withdrew for their home ports and HMS Black Eagle (the former Dutch Groningen) raised the distress flag, but it sank from the many below-water shot holes it had suffered before any ships' boats could take off its crew. By 6pm, Albemarle's fleet, reduced to 41 ships still in action, was near to collapse, with many ships badly damaged and with significant casualties, and some with little powder and shot left.
Second Day, Dutch reinforcements
To add to the English troubles, in the late afternoon or early evening, a new Dutch contingent of twelve ships appeared on the southeast horizon. At the time, Albemarle believed that these were part of a fresh force that the English intelligence network considered that the Dutch had retained as a tactical reserve. In fact, they were ships of Tromp's squadron that had chased the Rainbow into Ostend in the first day and were now re-joining the fight. Although it was clear this reinforcement could not join the Dutch fleet before dark, there was no question of the English fleet continuing the battle for a third day with only 35 ships, besides six badly damaged ones, when Rupert's whereabouts were still unknown.
Albemarle gave the order to retreat. Fortunately, the English fleet was heading northwest and had passed the Dutch fleet heading southeast, so no major change of course was necessary to take the fleet north of the Galloper Sand and into the deep water channel leading into the Thames Van Nes had given the order for the Dutch fleet to tack in succession to begin another pass against their opponent before he realised that the English fleet were escaping. He decided not to rescind this order and replace it with one for all his ships to tack together, reversing the order of sailing, as this might cause confusion. This gave Albemarle a four or five mile head start, too much for the Dutch to overtake him before nightfall, as the sun had almost set and the wind was dying away. During his retreat, Albemarle placed 15 of his strongest and least damaged ships including his Royal Charles in line abreast as a rear-guard, and ordered the six most badly damaged to make their own way to port. The St Paul (the former Dutch Sint Paulus) had taken on too much water to keep with the other ships and was burned to prevent capture after its crew had been taken off.
Both sides had missed chances to strike decisive blows on the second day. First, Albemarle's morning attack on the Dutch fleet, reduced by the absence of Tromp's squadron, had been unsuccessful. Then de Ruyter could not have felt entirely satisfied, as had later been unable to launch his desired all-out attack on the English fleet because he had to rescue Tromp. Although this rescue prevented Tromp's ships being overwhelmed, it and the failure van Nes to reverse the Dutch fleet quickly, lost le Dutch the chance of capturing many damaged English ships. The outnumbered English fleet had fought well and, although clearly defeated and in retreat, it had not been annihilated. However, it had only 28 ships that could be repaired and refitted for further combat. During the night, the two fleets lay becalmed about five miles apart making repairs.
A light breeze from the northeast replaced the overnight calm before sunrise, and the English fleet decided to continue its retreat, steering slightly north of west. Van Nes called a council of war, as de Ruyter was still far astern: this agreed to pursue the English fleet in line abreast and with the intention of engaging and overwhelming the English fleet, although it remained out of reach through the morning. By midday the wind strengthened and became easterly, so the fastest Dutch ships were released to try to overtake the English fleet. However, as the 15 ships of the English rearguard were all large and powerful, each with several large guns mounted in their sterns, whereas even the largest Dutch ships had only two medium-calibre guns that could fire forward, the English fleet was able to keep the Dutch ships at a distance, and continued on their way without difficulty.
Shortly before 3pm, Rupert's squadron was sighted to the southwest by the leading English ships, heading north. When van Nes saw this, he tried to bring Albemarle's ships into action before Rupert's squadron could reinforce his fleet. Albemarle's pilots assumed that both his fleet and Rupert's squadron were already north of the Galloper Sand and, at about 5pm, they steered to the west to join Rupert. The leading English ships were small, and their shallow draught allowed them to pass over the Galloper Sand without difficulty, but HMS Royal Charles, HMS Royal Katherine and HMS Prince Royal grounded on the sandbank. The first two managed to get free quickly, but the larger Prince Royal, flagship of the white squadron, was stuck fast. It was soon surrounded by several Dutch ships, including two fireships. Vice-Admiral George Ayscue, wished to resist any Dutch attack and ordered his men to stay calm and repulse the approaching fireships. However, the crew panicked and struck the flag, forcing Ayscue to surrender to Tromp on the Gouda, the only time in history an English admiral of so high a rank was captured at sea. Tromp wished to keep the Prince Royal as a prize, and when de Ruyter finally caught up with his fleet at about 7pm, he initially raised no objection. However, when it floated as the tide rose, its rudder and steering were found to be damaged so it could not steer itself. As the recombined English fleet was preparing to attack, de Ruyter ordered the Prince Royal to be burned at once, as it was possible that an attempt would be made to recapture it. Tromp later expressed his discontent at this, and was still trying to get compensation for the loss of this valuable prize in 1681.
After Rupert had left the main fleet on 29 May, Albemarle received information that a Dutch fleet which significantly outnumbered his had left its ports and was at sea. When this was passed to the king and his advisers, they sent Rupert an order for his squadron to return on 31 May: this reached him off the Isle of Wight on 1 June. His squadron reached Dover on 2 June but was delayed by light winds and adverse tides until the next morning.
Albemarle had only 27 ships remaining after the loss of the Prince Royal and sending six badly damaged ships to port. Rupert brought 26 ships, the 20 he had on 29 May together with Kent and Hampshire which had been detached from the fleet before 29 May and four fireships. Three more ships from the Thames, the Convertine, Sancta Maria and Centurion also joined the fleet at the same time as Rupert. The English fleet therefore consisted of 52 warships, nearly half of them undamaged and with full crews, and six fireships facing some 69 Dutch warships, 57 major ones and the rest frigates, and six or seven fireships.
Soon after Rupert's arrival, Albemarle convened a council of war which agreed to resume the battle in the following day, despite being weaker than the Dutch. Realising this, de Ruyter, who had resumed command from van Nes took his fleet eastward to make repairs and prepare for a fourth day of combat. De Ruyter considered that, despite the casualties suffered by many of his ships and shortages of ammunition, his superiority in numbers could still be decisive.
Albemarle and Rupert reorganised the English fleet. Rupert's squadron of undamaged fast ships with fresh crews took the van as the new white squadron under his own command, with Sir Christopher Myngs and Sir Edward Spragge as his vice-admiral and rear-admiral. Sir Robert Holmes replaced the captured Ayscue in charge of the remains of the former white squadron, now consisting of between eight and ten of its original twenty ships. Holmes’ ships probably former part of the centre under Albemarle, although its exact position is unclear, and a reduced blue squadron under Thomas Teddiman, its vice-admiral, commanding in the absence of its admiral formed the rear. Like the Dutch, the English fleet spent much of the evening and night repairing damage as far as possible.
Fourth Day, first engagements
The 4 June was cloudy with a brisk south-westerly wind. Both fleets had moved east of the Galloper Sand on divergent courses and were out of sight of each other at dawn, but English scouting ships soon found the Dutch to the south. When the main English fleet following the scouts was sighted, de Ruyter called his flag officers together to discuss a new arrangement for their nine divisions, with his own squadron in the van, de Vries (as successor to Evertsen) in the centre and Tromp in the rear. His intention was to break the English line in three places simultaneously rather than fight in line ahead. When the English fleet approached, sailing in a south-easterly direction, the Dutch had the weather gauge and sailed in line abreast in a northerly direction before forming line rather obliquely to the English fleet, so that only the Dutch rear and English van were initially within range of each other.
As on previous days, the fleets started by passing each other then reversing course. De Ruyter waited to exploit any gaps that might arise in the English line to carry out his plan of breaking through it, but about 7.30 on the second pass of the fleets, he was forestalled when Rupert's squadron, sailing west, raced for the weather gauge against the leading Dutch ships under Vice Admiral Johan de Liefde with the Ridderschap van Holland as his flagship. De Liefde's immediate opponent was Vice Admiral Myngs on HMS Victory. Myngs’ attempt to break the Dutch line was opposed by de Liefde trying to break the English one, but Myngs managed to force his division into the middle of de Liefde's ships In close-quarters fighting, Myngs was shot and fatally wounded and the disabled ‘‘Victory’’ with three ships protecting it was forced to the north. The Ridderschap van Holland was partly dismasted and unmanageable, but Rupert (who was intent on breaking the Dutch line) ordered his warships to stay in line and sent a fireship to burn it, although it only succeeded in setting fire to a Dutch fireship. The Ridderschap van Holland was then sent to port as being too damaged to continue fighting. Rupert’s attempt to break the Dutch line succeeded as HMS Royal James was larger and more strongly armed than any of de Liefde’s ships, and many others of Rupert’s and Albemarle’s ships followed through the gap it had created, or forced their own way through. However, Tromp’s rear squadron broke through Teddiman’s blue squadron, throwing it into confusion.
Seeing the danger to Teddiman’s squadron, both Albemarle and Rupert acted independently to reverse course and attack Tromp with superior numbers. Tromp could not continue on a south-westerly course, as Teddiman’s ships were in that direction: he had at most 12 to 14 ships, several of which were small, and could only withdraw to the north. While doing so, two of his ships collided and one the Landman was burned by an English fireship, which also damaged the Gouda severely. De Ruyter had achieved his objective of completely disrupting the English line by late morning, but his own fleet was also in disorder and so unable to take advantage of the confused English fleet.
After Tromp withdrew, gunfire ceased briefly while the disordered fleets tried to rearrange themselves to continue fighting. In the English fleet, Teddiman’s rear squadron had first to be brought into line. However, once the English battle line was completed, de Ruyter had at most 35 ships with him, and possibly fewer, to oppose it. Tromp, van Nes (who had decided to chase the four ships from Myngs’ former squadron) and de Vries were all some distance away and the English fleet was between them and de Ruyter. The Victory, now commanded by its lieutenant, John Narborough, and its three consorts were attacked by Tromp and van Nes with around 25 ships but managed to manoeuvre to avoid capture and all survived the battle. De Vries ignored this contest, and attempted to rejoin de Ruyter.
Despite having possibly as few as 32 and certainly not more than 35 ships to fight as many as 48 English ones, de Ruyter had regained the weather gauge while Albemarle and Rupert were attacking Tromp. During the late morning and early afternoon, the two fleets passed and repassed each other. Albemarle made no attempt to keep de Vries from joining the main Dutch fleet, which he did around noon. During the successive passes, the English fleet with superior numbers and heavier guns attempted to close with the Dutch, but de Ruyter prudently kept his ships at such a distance that, on some passes, the English ships, some with their magazines depleted by the previous days’ fighting, withheld their fire.
De Ruyter's patience was based on the probability that some or all of van Nes and Tromp's 25 ships would return to the main action, which they began to do on the lee side of the English fleet from around 3pm. In response, Albemarle with some 37 ships including Sprague's division from Rupert's white squadron concentrated on van Nes and Tromp while Rupert with around a dozen ships manoeuvred to hold off de Ruyter. Albemarle's intention was to strike a decisive blow before his ammunition and daylight ran out.
Fourth Day, de Ruyter's attack
Albemarle and Rupert gambled that de Ruyter would remain to windward and at a distance, so that Rupert's ships could hold them off for long enough for Albemarle to crush Tromp and van Nes. Albemarle attacked at close range and sent in a fireship, both of which caused confusion among the Dutch. Teddiman's Royal Katherine so damaged Tromp's Wapen van Utrecht that Tromp was forced to retire and was unable to return to action; the Dom van Utrecht was forced to surrender to the Royal Charles and several other ships were disabled. Albemarle's policy prohibited his larger ships stopping to take possession of these captured or disabled ships, but he later claimed that his frigates should have set fire to them. Despite this, Albemarle had put a large proportion if the Dutch fleet out of action and his victory seemed certain.
De Ruyter, three miles to windward, looked on anxiously. He had been waiting for several hours for Tromp and van Nes to join him, but they had been routed in a few minutes. He later confirmed that he had thought he had lost the battle, but after consulting Vice Admiral Adriaen Banckert, he waited until Rupert's squadron sailing east had passed his fleet sailing west then crossed Rupert's wake sailing northeast towards Albemarle's rear. At first, Albemarle thought that de Ruyter intended to link up with van Nes and escape with as many Dutch ships as possible, and his exhausted forces with little ammunition left did not move to oppose this manoeuvre.
De Ruyter's unexpected attack, when Albemarle appeared to be on the point of destroying Tromp's squadron, caused some British captains to lose their nerve, and things began to go badly for the English fleet. Rupert in the Royal James and his squadron at first assumed that de Ruyter was withdrawing and had started to make repairs; the masts and rigging of the Royal James in particular had been badly shaken. As soon as he realised that the Dutch were attacking Albemarle, Rupert ordered his ships to attack de Ruyter, who would be trapped between them and the main English fleet. Almost immediately, the Royal James lost its main topmast, its mizzen mast and several major yards: it was now disabled and the rest of the squadron, rather than continuing against the Dutch, withdrew to defend their flagship and tow it westward. Rupert later claimed that there was no other ship he could use as a substitute flagship, but eyewitnesses claimed there were.
Seeing this, de Ruyter realised that he could win the battle and raised the red flag as the signal for an all-out attack, concentrating on the English rear. Albemarle's flagship, the Royal Charles had a damaged foremast and main topmast, and had suffered shot holes to windward, so Albemarle was unable to tack to assist the rear for fear of losing masts or flooding. He also believed that his captains, unnerved by the sudden change of fortune, would not tack at his signal unless the Royal Charles led them. Those English ships of Teddiman's squadron and others in the rear that stayed in line were able to follow Albemarle westwards, as the Dutch were as short of gunpowder as their opponents, and aimed to board and capture them. The Rupert lost a mast, but managed to fight off her pursuers, however the Frisian Rear-Admiral Hendrik Brunsvelt captured the merchant Convertine, which was entangled with HMS Essex and the former Dutch HMS Black Bull which' later sank. Brunsvelt's vice admiral, Rudolf Coenders in Groningen captured HMS Clove Tree (the former VOC-ship Nagelboom).
Fourth Day, English retreat
Once the English rear had been subdued, de Ruyter led most of his fleet in pursuit of Albemarle and Rupert, hoping to prevent them joining forces. The English fleet maintained a westward course towards the deep water channel leading to the Thames estuary. Albemarle and Rupert later claimed that their initial aim of their withdrawal was to unite and, if necessary renew the fight the next day, but the poor condition of many ships and their lack of ammunition decided them to continue homeward. However, other English officers said that the Dutch pursued the retreating English fleet for two hours before deciding to retire back to their own harbours.
De Ruyter later claimed that he had called off the pursuit of the English fleet because of a thick fog which made navigation difficult, otherwise he would have followed the ships as far as their home ports. However, the fog was only temporary and de Ruyter had only around 40 ships under his immediate command, with others disabled and returning to the Netherlands or dealing with prizes, and Albemarle had almost as many, including several large vessels, which posed a significant risk to the exhausted Dutch fleet.
By the end of the third day de Ruyter had already secured strategic victory, as the loss of ships and damage to the remainder would have prevented the English fleet interfering with the Dutch East Indies trade or preventing a French fleet joining the Dutch. Even had he retreated on the fourth afternoon, as Albemarle and Rupert thought, he would only have conceded a limited tactical victory to the English fleet and preserved most of his own fleet. The dismasting of Royal James was an opportunity that de Ruyter seized, but his attack on Albemarle was still a considerable gamble that might not have succeeded if the rest of Rupert's squadron had attacked him rather than withdrawing to the west.
The biggest sea battle of the Second Anglo-Dutch War and in the age of sail was undoubtedly a Dutch victory although both sides initially claimed they had won. However, the Dutch fleet had found it difficult to overcome an English fleet that, for the first three days of fighting, was much weaker in numbers than it, and the Dutch had been in danger of defeat on the second and particularly the fourth day. The Dutch had also lost more men killed, mainly on the four ships that had been burned. The absence of the French fleet prevented the possible destruction of the English fleet, so the outcome is sometimes described as inconclusive. Although the Dutch adopted the tactic of fighting in line for the first time, it was not a complete success, as subordinate commanders and individual captains sometimes lacked sufficient discipline to fully exploit this new tactic. The Dutch victory on the fourth day was only won after De Ruyter signalled an "old-fashioned" attack which many of the Dutch were more used to.
Immediately after the battle the English captains of Rupert's squadron, not having seen the final outcome, claimed De Ruyter had retreated first, then normally seen as an acknowledgement of the superiority of the enemy fleet. Though the Dutch fleet was eventually forced to end the pursuit, they had managed to cripple the English fleet, at least temporarily, and lost only four smaller ships themselves as the Spieghel refused to sink and was repaired. However, the apparent ascendancy of the Dutch fleet after the Four Days Battle lasted only seven weeks, during which time many damaged English ships were repaired, several others that missed Four Days Battle completed their fitting out and joined the fleet, and a rigorous use of impressment powers ensured the English fleet was adequately manned
Around 1,800 English sailors were taken prisoner and transported to Holland. Many subsequently took service in the Dutch fleet against England. Those that refused to do so remained in Dutch prisons for the following two years.
The Dutch leader, Johan de Witt, overestimating the scale of the Dutch victory, ordered de Ruyter to attack and destroy the English fleet while it was anchored in the Thames estuary, while 2,700 Dutch infantry would be transported to the Kent or Essex shores of the Thames to defeat any local militia. This two-pronged attack would, de Witt hoped, end the war in favour of the Dutch Republic. De Ruyter sailed on 25 June and reached the mouth of the Thames on 2 July. Two Dutch squadrons attempted to find a safe passage into the Thames but found the buoys and other navigational aids either removed or placed over sandbanks and a strong English squadron ready to dispute their passage. De Ruyter then decided to blockade the Thames in the hope that what he thought would be the weakened remains of the English fleet would be forced to face him and be destroyed.
Although the restored English fleet had reached numbers equal to de Ruyter's fleet by the first week of July, 1666, Rupert and Albemarle waited until the ships being fitted out and manned joined, and sailed out if the Thames on 22 July. The Dutch fleet moved away from the shallow estuary, and the two fleets met on 25 July at the North Foreland in the St. James's Day Battle. This was an English victory, although not as comprehensive as its commanders wished, because the bulk of the Dutch fleet was not destroyed, although it suffered heavy casualties. The Dutch were, however, demoralised and its commanders indulged in mutual recriminations. After this battle, while the Dutch fleet was being repaired an English squadron, entered the Vlie estuary and burned 150 out of a fleet of 160 merchant ships, inflicting severe economic damage on the Netherlands.
The French and the Dutch accused each other of failing to ensure that their respective fleets met as planned. Louis XIV blamed the Dutch for not having its fleet ready in March, which had caused him to delay Beaufort, and the Dutch believed that Louis never intended to risk his fleet in battle. However, on 1 September de Ruyter had anchored his fleet near Boulogne and could have joined Beaufort at Belle-Île, but he withdrew to Dunkirk on 8 September. Meanwhile, Beaufort had left Belle-Île and entered the English Channel reaching Dieppe on 13 September before turning back on finding de Ruyter had withdrawn, a losing a new and powerful ship which was captured by four English ones. This ended naval and military cooperation between the two countries.
End of the war
In 1667, the English government was unable to finance a fleet as large and well-manned as that fitted out on July 1666, although such a strong one would have been needed to inflict a serious, and possibly decisive, defeat on the Dutch fleet. This and the Dutch success in the Raid on the Medway made peace inevitable. England had gone to war in the expectation of an early victory that would not overstretch its government's fragile financial position, but both it and the Netherlands had put such unprecedented efforts into providing ships and men that no decisive naval victory was possible, and severe English financial difficulties and the Dutch need to resume unrestricted commercial activity created the conditions for peace without resolving all the underlying causes for the conflict 
- St. James's Day Battle, the "Two Days' Battle" a few week later
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