Frederick William I, Duke of Schleswig-Holstein-Sonderburg-Beck

Frederick William I, Duke of Schleswig-Holstein-Sonderburg-Beck
Born(1682-05-02)2 May 1682
Haus Beck, near Ulenburg, Westphalia, Brandenburg, Holy Roman Empire
Died26 June 1719(1719-06-26) (aged 37)
Battle of Francavilla, Francavilla di Sicilia, Sicily
Noble familyHouse of Oldenburg
Spouse(s)Maria Antonia "Antoinette" Josepha Isnardi di Castello
FatherAugust, Duke of Schleswig-Holstein-Sonderburg-Beck
MotherCountess Hedwig Louise of Lippe-Alverdissen

Frederick William I, Duke of Schleswig-Holstein-Sonderburg-Beck (German: Friedrich Wilhelm I. Herzog von Schleswig-Holstein-Sonderburg-Beck; 2 May 1682 26 June 1719) was a son of Duke August and his wife, Countess Hedwig Louise of Lippe-Alverdissen (1650-1731). He succeeded his father as Duke of Schleswig-Holstein-Sonderburg-Beck in 1689.