| Frederick Louis | |
|---|---|
| Duke of Schleswig-Holstein-Sonderburg-Beck | |
| Spouse | Luise Charlotte of Schleswig-Holstein-Sonderburg-Augustenburg |
| Issue | |
| Peter August, Duke of Schleswig-Holstein-Sonderburg-Beck | |
| Full name | |
| Frederick Louis | |
| Father | August Philipp, Duke of Schleswig-Holstein-Beck |
| Mother | Countess Marie Sibylle of Nassau-Saarbrücken |
| Born | 7 April 1653 Königsberg, Prussia |
| Died | 7 March 1728 (aged 74) Königsberg, Prussia |
Frederick Louis of Holstein-Sonderburg-Beck (German: Friedrich Ludwig von Holstein-Sonderburg-Beck), Duke of Schleswig-Holstein-Sonderburg-Beck (6 April 1653 – 7 March 1728) was born in Beck (now part of Löhne, North Rhine-Westphalia). He was the son of August Philipp, Duke of Schleswig-Holstein-Beck and Countess Marie Sibylle of Nassau-Saarbrücken. Friedrich died in Königsberg.
He was only the titular duke, because he did not inherit the domain of Beck. It had been inherited by the son of his elder brother, Duke August, in 1689.[1] August's son, Duke Frederick William I, was killed in the Battle of Francavilla in Sicily in 1719, leaving a widow, née Doña Maria Antonia Isnardi di Castello, Contessa di Sanfré (1692–1762), and two minor daughters.[1] Maria Antonia shared administration of Beck with her mother-in-law, Duchess Hedwig Luisa of Schleswig-Holstein-Beck (née Countess zu Lippe-Buckeburg-Schaumburg).[1]
On 1 January 1685 in Augustenburg, Frederick Louis married Luise Charlotte of Schleswig-Holstein-Sonderburg-Augustenburg, daughter of Ernest Günther, Duke of Schleswig-Holstein-Sonderburg-Augustenburg and Augusta of Glücksburg. They had several children:
Frederick Louis was succeeded as duke by his eldest son, Frederick William II (1687–1749) (whose only son, Duke Frederick William III, died in battle at Prague in 1757), and eventually by his younger sons, Carl Louis (1690–1774), and Peter August, Duke of Schleswig-Holstein-Sonderburg-Beck (1697–1775).[1]
In 1732, Beck would be bought by Frederick William II from Maria Antonia, re-uniting the ducal title and ducal lands. But the latter only remained in the family until sold in 1745.[1]