Frederick William I of Prussia

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Frederick William I
Friedrich Wilhelm I 1713.jpg
Portrait by Samuel Theodor Gericke (1713)
King in Prussia
Elector of Brandenburg
Reign 25 February 1713 – 31 May 1740
Predecessor Frederick I
Successor Frederick II
Born (1688-08-14)14 August 1688
Berlin, Prussia
Died 31 May 1740(1740-05-31) (aged 51)
Berlin, Prussia
Burial Friedenskirche, Sanssouci Park, Potsdam
Spouse Sophia Dorothea of Hanover
House Hohenzollern
Father Frederick I
Mother Sophia Charlotte of Hanover
Religion Calvinism

Frederick William I (German: Friedrich Wilhelm I) (14 August 1688 – 31 May 1740), known as the 'Soldier King,'[1] was the King in Prussia and Elector of Brandenburg from 1713 until his death, as well as the father of Frederick the Great. He was in personal union the sovereign prince of the Principality of Neuchâtel.


Portrait of Augustus II of Poland (left) and Frederick William I of Prussia (right), during Frederick William's 1728 visit to Dresden. Painting by Louis de Silvestre, about 1730

He was born in Berlin to Frederick I of Prussia and Sophia Charlotte of Hanover. His father had successfully acquired the title King for the margraves of Brandenburg. On ascending the throne in 1713 the new King sold most of his fathers' horses, jewels and furniture; he did not intend to treat the treasury as his personal source of revenue the way Frederick I and many of the other German Princes had. During his own reign, Frederick William I did much to centralize and improve Prussia. He replaced mandatory military service among the middle class with an annual tax, established schools and hospitals, and resettled East Prussia (which had been devastated by the plague in 1709).[2]

The king encouraged farming, reclaimed marshes, stored grain in good times and sold it in bad times. He dictated the manual of Regulations for State Officials, containing 35 chapters and 297 paragraphs in which every public servant in Prussia could find his duties precisely set out: a minister or councillor failing to attend a committee meeting, for example, would lose six months' pay; if he absented himself a second time, he would be discharged from the royal service.

In short, Frederick William I concerned himself with every aspect of his relatively small country, planning to satisfy all that was needed for Prussia to defend itself. His rule was absolutist and he was a firm autocrat. He practiced rigid, frugal economy, never started a war, and led a simple and austere lifestyle, in contrast to the lavish court his father had presided over. At his death, there was a large surplus in the royal treasury (which was kept in the cellar of the royal palace). He intervened briefly in the Great Northern War in order to gain a portion of Swedish Pomerania. More significantly, aided by his close friend Prince Leopold of Anhalt-Dessau, the "Soldier-King" made considerable reforms to the Prussian army's training, tactics and conscription program—introducing the canton system, and greatly increasing the Prussian infantry's rate of fire through the introduction of the iron ramrod. Frederick William's reforms left his son Frederick with a formidable army, which Frederick used to increase Prussia's power. The observation that "the pen is mightier than the sword" has sometimes been attributed to him. (See as well: "Prussian virtues".) Although a highly effective ruler, Frederick William had a violent temper; this was exacerbated by his inherited porphyritic illness, which gave him gout, obesity and frequent stomach pains.[3] He also had a notable contempt for France, and would sometimes fly into a rage at the mere mention of that country, although this did not stop him from encouraging the immigration of French Huguenot refugees to Prussia.

Burial and reburials[edit]

Frederick William died in 1740 at age 51 and was interred at the Garrison Church in Potsdam. During World War II, in order to protect it from advancing allied forces, Hitler ordered the king's coffin, as well as those of Frederick the Great and Paul von Hindenburg, into hiding, first to Berlin and later to a salt mine outside of Bernterode. The coffins were later discovered by occupying American Forces, who re-interred the bodies in St. Elisabeth's Church in Marburg in 1946. In 1953 the coffin was moved to Burg Hohenzollern, where it remained until 1991, when it was finally laid to rest on the steps of the altar in the Kaiser Friedrich Mausoleum in the Church of Peace on the palace grounds of Sanssouci. The original black marble sarcophagus collapsed at Burg Hohenzollern—the current one is a copper copy.[4]

Relationship with Frederick II[edit]

The sons of Frederick William I and Sophia Dorothea; left to right Frederick, Ferdinand, Augustus William and Henry. Painting by Francesco Carlo Rusca, 1737

His eldest surviving son was Frederick II (Fritz), born in 1712. Frederick William wanted him to become a fine soldier. As a small child, Fritz was awakened each morning by the firing of a cannon. At the age of 6, he was given his own regiment of children [5] to drill as cadets, and a year later, he was given a miniature arsenal.

The love and affection Frederick William had for his heir initially was soon destroyed due to their increasingly different personalities. Frederick William ordered Fritz to undergo a minimal education, live a simple Protestant lifestyle, and focus on the Army and statesmanship as he had. However, the intellectual Fritz was more interested in music, books and French culture, which were forbidden by his father as decadent and unmanly. As Fritz's defiance for his father's rules increased, Frederick William would frequently beat or humiliate Fritz (he preferred his younger sibling Augustus William). Fritz was beaten for being thrown off a bolting horse and wearing gloves in cold weather. After the prince attempted to flee to England with his tutor, Hans Hermann von Katte, the enraged King had Katte executed before the eyes of the prince, who himself was court-martialled.[6] The court declared itself not competent in this case. Whether it was the king's intention to have his son executed as well (as Voltaire claims) is not clear. However, the Holy Roman Emperor Charles VI intervened, claiming that a prince could only be tried by the Imperial Diet of the Holy Roman Empire itself. Frederick was imprisoned in the Fortress of Küstrin from 2 September to 19 November 1731 and exiled from court until February 1732, during which time he was rigorously schooled in matters of state. After achieving a measure of reconciliation, Frederick William had his son married to Princess Elizabeth of Brunswick-Wolfenbüttel, whom Frederick despised, but then allowed him to indulge in his musical and literary interests again. By the time of Frederick William's death in 1740, he and his heir were on at least reasonable terms with each other.

Although the relationship between Frederick William and Frederick was clearly hostile, Frederick himself later wrote that his father "penetrated and understood great objectives, and knew the best interests of his country better than any minister or general."

Marriage and family[edit]

Frederick William married his first cousin Sophia Dorothea of Hanover, George II's younger sister (daughter of his uncle, King George I of Great Britain and Sophia Dorothea of Celle) on 28 November 1706. Frederick William was faithful and loving to his wife [7] but they did not have a happy relationship: Sophia Dorothea feared his unpredictable temper and resented him, both for allowing her no influence at court and for refusing to marry her children to their English cousins. She also abhorred his cruelty towards their son and heir Frederick (with whom she was close), although rather than trying to mend the relationship between father and son she frequently spurred Frederick on in his defiance. They had fourteen children, including:

Name Portrait Lifespan Notes
Frederick Louis
Prince of Prussia
1707 Friedrich Ludwig.JPG 23 November 1707-
13 May 1708
Died in infancy
Friedrike Wilhelmine
Margravine of Brandenburg-Bayreuth
Wilhelmine von Brandenburg-Bayreuth.jpg 3 July 1709-
14 October 1758
Married Frederick, Margrave of Brandenburg-Bayreuth and had issue
Frederick William
Prince of Prussia
1710 Friedrich Wilhelm.jpg 16 August 1710-
21 July 1711
Died in infancy
Frederick II the Great
King of Prussia
Crown prince Friedrich II, by Antoine Pesne.jpg 24 January 1712-
17 August 1786
King of Prussia (1740–1786); married Elisabeth Christine of Brunswick-Wolfenbüttel-Bevern but had no issue
Charlotte Albertine
Princess of Prussia
1713 Charlotte Albertine.jpg 5 May 1713-
10 June 1714
Died in infancy
Frederica Louise
Margravine of Brandenburg-Ansbach
Friederike Louise von Brandenburg-Ansbach.jpg 28 September 1714-
4 February 1784
Married Charles William Frederick, Margrave of Brandenburg-Ansbach and had issue
Philippine Charlotte
Duchess of Brunswick-Wolfenbüttel
Alte Dame mit Spitzenumhang und Muff Gotha.jpg 13 March 1716-
17 February 1801
Married Charles I, Duke of Brunswick-Wolfenbüttel and had issue
Louis Charles William
Prince of Prussia
Wappen Deutsches Reich - Königreich Preussen (Grosses).png 2 May 1717-
31 August 1719
Died in early childhood
Sophia Dorothea
Margravine of Brandenburg-Schwedt
Princess in Prussia
Sophia Dorothea of Prussia, margravine of Brandenburg-Schwedt.jpg 25 January 1719-
13 November 1765
Married Frederick William, Margrave of Brandenburg-Schwedt, Prince in Prussia and had issue
Louisa Ulrika
Queen of Sweden
LuiseUlrikevonPreußen01.jpg 24 July 1720-
2 July 1782
Married Adolf Frederick, King of Sweden and had issue
Augustus William
Prince of Prussia
1722 AugustWilliamofPrussia.jpg 9 August 1722-
12 June 1758
Married Duchess Luise of Brunswick-Wolfenbüttel and had issue (including Frederick William II)
Anna Amalia Antoine Pesne hofdame ; Prinzessin Amalia von Preussen als Amazone.jpg 9 November 1723-
30 March 1787
Became Abbess of Quedlinburg 16 July 1755
Frederick Henry Louis
Prince of Prussia
HeinrichvonPreussenTischbein1769.jpg 18 January 1726-
3 August 1802
Married Princess Wilhelmina of Hesse-Kassel but had no issue
Augustus Ferdinand
Prince of Prussia
1730FerdinandofPrussia.jpg 23 May 1730-
2 May 1813
Married Margravine Elisabeth Louise of Brandenburg-Schwedt and had issue

He was the godfather of the Prussian envoy Friedrich Wilhelm von Thulemeyer and of his grand-nephew, Prince Edward Augustus of Great Britain.

Titles from birth[edit]

  • His Serene Highness The Electoral Prince of Brandenburg
  • His Royal Highness The Crown Prince in Prussia
  • His Majesty The King in Prussia


Frederick William I's ancestors in three generations
Frederick William I of Prussia Father:
Frederick I of Prussia
Paternal Grandfather:
Frederick William, Elector of Brandenburg
Paternal Great-grandfather:
George William, Elector of Brandenburg
Paternal Great-grandmother:
Elizabeth Charlotte of the Palatinate
Paternal Grandmother:
Louise Henriette of Orange-Nassau
Paternal Great-grandfather:
Frederick Henry, Prince of Orange
Paternal Great-grandmother:
Amalia of Solms-Braunfels
Sophia Charlotte of Hanover
Maternal Grandfather:
Ernest Augustus, Elector of Brunswick-Lüneburg
Maternal Great-grandfather:
George, Duke of Brunswick-Lüneburg
Maternal Great-grandmother:
Anne Eleonore of Hesse-Darmstadt
Maternal Grandmother:
Sophia of Hanover
Maternal Great-grandfather:
Frederick V, Elector Palatine
Maternal Great-grandmother:
Elizabeth of Bohemia

See also[edit]


  1. ^ Taylor, Ronald (1997). Berlin and Its Culture: A Historical Portrait. New Haven, Conn.: Yale University Press. p. 51.
  2. ^ Ostpreußen: The Great Trek
  3. ^ [Mitford, Nancy "Frederick the Great" (1970) P6]
  4. ^ MacDonogh, Giles (2007). After the Reich: The Brutal History of the Allied Occupation. New York: Basic Books. p. 93.
  5. ^ Mitford, Nancy (1970). "Frederick the Great" pp.11
  6. ^ Farquhar, Michael (2001). A Treasure of Royal Scandals. New York: Penguin Books. p. 114. ISBN 0-7394-2025-9.
  7. ^ Mitford, Nancy (1970). "Frederick the Great" p.5

External links[edit]

Frederick William I of Prussia
Born: 14 August 1688 Died: 31 March 1740
Regnal titles
Preceded by
Frederick I
King in Prussia
Elector of Brandenburg
Prince of Neuchâtel

Succeeded by
Frederick II