| Frederick William II, Prince of Nassau-Siegen | |
|---|---|
| Born |
11 November 1706 Siegen |
| Died | 11 November 1734 (aged 28) Siegen |
| Noble family | House of Nassau |
| Spouse(s) | Sophie Polyxena Concórdia of Sayn-Wittgenstein-Hohenstein |
| Father | Frederick William Adolf, Prince of Nassau-Siegen |
| Mother | Juliane of Hesse-Homburg |
Frederick William II, Prince of Nassau-Siegen (11 November 1706 in Siegen – 11 November 1734 in Siegen) was the last Prince of Nassau-Siegen from the Calvinist line. He was the eldest son of Frederick William Adolph (1680–1722) and his wife, Juliane of Hesse-Homburg (1681–1707).
He was only 16 years old when he inherited the principality and was unable to lead it out of its financial crisis.
He died in 1734 without a male heir. Emperor Charles VI then enfeoffed Nassau-Siegen to William IV of Orange-Nassau-Dietz.
On 23 September 1728, Frederick William II married Sophie Polyxena Concórdia of Sayn-Wittgenstein-Hohenstein (28 May 1709 in Berlin – 15 December 1781 in Siegen), the daughter of Count August David zu Sayn-Wittgenstein-Hohenstein. They had five daughters: