Frederick William I, Duke of Schleswig-Holstein-Sonderburg-Beck — news, coverage & facts — IJR
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Frederick William I, Duke of Schleswig-Holstein-Sonderburg-Beck
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Frederick William I, Duke of Schleswig-Holstein-Sonderburg-Beck 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.