Frederick William, Duke of Cieszyn

Frederick William of Cieszyn (Polish: Fryderyk Wilhelm cieszyński, Czech: Bedřich Vilém (Těšín), German: Friedrich Wilhelm (Teschen); 9 November 1601 – 19 August 1625) was a Duke of Cieszyn since 1617 until his death.

He was the third but only surviving son of Adam Wenceslaus, Duke of Cieszyn, by his wife Elisabeth, daughter of Gotthard Kettler, Duke of Courland. His mother died from childbirth complications ten days after his birth, on 19 November 1602.

Since his early years, Frederick William's education was entrusted to the Silesian humanist Baltzar Exner. In 1611 Duke Adam Wenceslaus decided to convert to the Catholicism, and all the Protestant members of his court were dismissed, among them also Exner. Frederick William was then sent to the Jesuits in Munich.

On 13 July 1617 Duke Adam Wenceslaus died and was succeeded by Frederick William. Despite this, the young Duke remained in Munich until 1624. On his behalf, the authority over the Duchy was exercised by a Regency council, which included Archduke Charles of Habsburg, Bishop of Wrocław, Karl of Liechtenstein, Duke of Opava and Krnov and George of Oppersdorf, Starost of Opole-Racibórz. However, the real power in Cieszyn was held by the Duke's sister, Elizabeth Lucretia.

During the 1620s a plague infected Cieszyn and many citizens died. The Duchy was also affected by the Thirty Years' War and plundered by various forces. In 1620 Skoczów was destroyed by the Lisowczycy troops, who recognized Protestant inhabitants of this city as their enemies. In 1621, Cieszyn was severely destroyed by the Imperial troops stationed here under the command of Colonel Charles Spinelli. Finally, in 1622 Cieszyn was the battlefield in the fight between the Protestants troops of John George, Elector of Brandenburg, and the Catholics forces led by Charles Hannibal of Dohna.

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