Siege of Zara
|Siege of Zadar|
|Part of the Fourth Crusade|
Siege of Zadar (Ital.: Zara)
| Fourth Crusade
Republic of Venice
| Kingdom of Hungary
Kingdom of Croatia
|Commanders and leaders|
| Enrico Dandolo
| Emeric I
(King of Hungary and Croatia, not present)
|Crusaders: 10,000 men
Venetians: 10,000 men
|Casualties and losses|
The Siege of Zara or Siege of Zadar (Croatian: Opsada Zadra; November 10–24, 1202) was the first major action of the Fourth Crusade and the first attack against a Catholic city by Catholic crusaders. The Fourth Crusade sacked the Croatian town of Zadar, a rival of Venice, despite letters from Pope Innocent III forbidding such an action and threatening excommunication.
Shortly after his election as pope in 1198, Pope Innocent III (1161–1216) published several papal encyclicals calling for the invasion and recapture of the Holy Land from the Muslims. His plan to accomplish this differed from the earlier ultimately unsuccessful Second and Third crusades in several ways. Instead of the secular nobles who led the earlier crusades, this one would be, in theory, completely under papal control. Innocent's plan also called for the invading armies to travel to Egypt by sea and seize the Nile Delta, which would then be used as a base from which to invade Palestine. His call was at first poorly received among the ruling families of Europe, but by 1200, an army of approximately 35,000 was formed.
Innocent III negotiated an agreement with the Republic of Venice, Europe's dominant sea power at the time, involving the construction of a fleet of warships and transports. The deal stipulated that about 35,000 crusaders would need transport and the Venetians would be paid 94,000 marks of silver, to be paid in installments. A council held at Soissons in June 1201 chose Boniface of Montferrat to lead the expedition.
The agreement between the Venetians and the crusaders had set the date for the arrival of the host in Venice before the end of April 1202, in order to provide for a departure in time for a summer crossing at the end of June. The crusade leaders had counted on raising the money still owed to the Venetians through the collection of passage money from the individual crusaders. However, the first crusader groups did not leave France until April and May, others straggled along throughout the summer and some of the French nobles chose to sail instead from Marseilles and other ports. Therefore, after the Venetians had suspended their regular commercial operations for a year to build and crew the ships, only about 12,000 crusaders showed up at Venice to man and pay for them. Boniface and the nobles added what money they could spare, and pledged their gold and silver plate to the Venetian moneylenders. Still the crusaders found themselves only able to pay 51,000 marks to the Venetians. In response, the Venetians indicated that they would accept the invasion of Zara (now Zadar, Croatia), a Catholic city on the coast of the Adriatic, as well as nearby Trieste, in lieu of payment for the time being; the crusaders were then to pay the rest owed to the Venetians out of their initial gains in the crusade. Zara had rebelled against the Venetian Republic in 1183, and placed itself under the dual protection of the Papacy and King Emeric of Hungary (who had recently agreed to join the Crusade). Though a large group of Crusaders found the scheme repulsive and refused to participate, the majority agreed (despite the written protests of Innocent III), citing it as necessary to attain the larger goal of taking Jerusalem.
The attack on Zadar took the form of an amphibious landing followed by a brief siege. The crusaders used the 50 amphibious transports, 100 horse carriers and 60 warships designed and built for them by the Venetians. Their transports were approximately 30 m long, 9 m wide and 12 m high, with a crew of 100. Each one could carry up to 600 infantry. The horse carriers featured specially designed slings to carry their cargo of horses, and featured a fold-out ramp below the waterline that could be opened to allow mounted knights to charge directly onto shore. The Venetian warships were powered by 100 oarsmen each and featured a metal-tipped ram just above the waterline as their primary weapon. Also, during the siege, 150 siege engines were used to bombard the city's walls. Chains and booms were laid across the mouth of Zadar's harbor as a defense, but the crusaders burst through them in their Venetian ships and landed their troops and equipment without harassment. Zadar fell on 23 November 1202, and the incident foreshadowed the Siege of Constantinople later in the campaign.
In 1203, Innocent excommunicated the entire crusading army, along with the Venetians, for taking part in the attack. "Behold," the pope wrote, "your gold has turned into base metal and your silver has almost completely rusted since, departing from the purity of your plan and turning aside from the path onto the impassable road, you have, so to speak, withdrawn your hand from the plough [...] for when [...] you should have hastened to the land flowing with milk and honey, you turned away, going astray in the direction of the desert." He would later grant an absolution to the entire army.
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