Back فريدريك وليام ARZ Фридрих Вилхелм Кетлер Bulgarian Frederic Guillem Kettler Catalan Friedrich Wilhelm Kettler German Φρειδερίκος Γουλιέλμος της Κουρλάνδης Greek Federico Guillermo Kettler Spanish Friedrich Wilhelm Kettler Estonian Frédéric III Guillaume Kettler French פרידריך וילהלם, דוכס קורלנד HE Federico Guglielmo Kettler Italian
| Friedrich Wilhelm Kettler | |||||
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| Duke of Courland and Semigallia | |||||
| Reign | 22 January 1698 – 21 January 1711 | ||||
| Predecessor | Frederick Casimir Kettler | ||||
| Successor | Ferdinand Kettler | ||||
| Born | 19 July 1692 Mitau (Jelgava), Duchy of Courland and Semigallia | ||||
| Died | 21 January 1711 (aged 18) Kippinghof, Russian Empire | ||||
| Burial | Ducal Crypt of Schloss Mitau | ||||
| Spouse | |||||
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| House | Kettler | ||||
| Father | Frederick Casimir Kettler | ||||
| Mother | Margravine Elisabeth Sophie of Brandenburg | ||||
| Religion | Lutheranism | ||||
Frederick William (German: Friedrich Wilhelm; 19 July 1692 – 21 January 1711) was Duke of Courland and Semigallia from 1698 to 1711. Frederick Wilhelm was the son of Friedrich Kasimir Kettler, Duke of Courland and Semigallia and Princess Elisabeth Sophie of Brandenburg. During his reign the duchy was occupied by Swedish and later by Russian troops.