Frederick Louis of Nassau-Ottweiler | |
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| Born | 13 November 1651 Ottweiler |
| Died | 25 May 1728 (aged 76) Saarbrücken |
| Noble family | House of Nassau |
| Spouse(s) | Christiane of Ahlefeldt-Rixingen Louise Sophie of Hanau-Lichtenberg |
| Father | John Louis, Count of Nassau-Ottweiler |
| Mother | Countess Palatine Dorothea Catherine of Birkenfeld-Bischweiler |
Frederick Louis of Nassau-Ottweiler (13 November 1651 – 25 May 1728) was a member of the House of Nassau.