Frederick William III, Duke of Schleswig-Holstein-Sonderburg-Beck | |
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_Herzog_von_Schleswig-Holstein-Sonderburg-Beck_-_Deutsche_Digitale_Bibliothek.jpg) Frederick William III, Duke of Schleswig-Holstein-Sonderburg-Beck | |
| Born | 4 November 1723 |
| Died | 6 May 1757 (aged 33) Prague, Bohemia |
| Noble family | House of Oldenburg |
| Father | Frederick William II, Duke of Schleswig-Holstein-Sonderburg-Beck |
| Mother | Ursula Anna of Dohna-Schlodien |
Frederick William III, Duke of Schleswig-Holstein-Sonderburg-Beck (4 November 1723 – 6 May 1757) was the Duke of Schleswig-Holstein-Sonderburg-Beck from 1749.