Background
George Frederick was the son of John VII, Count of Nassau (1561–1623) and his second wife, Princess Margareth of Schleswig-Holstein-Sonderburg (1583–1658).
George Frederick was the son of John VII, Count of Nassau (1561–1623) and his second wife, Princess Margareth of Schleswig-Holstein-Sonderburg (1583–1658).
George Frederick was a soldier and became on 19 November 1627 Captain (Hauptmann) of the infantry of the Dutch Republic. On 3 January 1633 he became Rittmeister of the cavalry. On 9 January 1637 he returned as Major to the infantry where he was promoted to Oberst on 8 January 1642.
From 30 October 1648 to 1658, George Frederick was Stadtholder of Rheinberg.
On 25 October 1658 he became Gouverneur of Bergen op Zoom. From 1638 until his death after an injury on the battlefield 1674, he was ruler of Nassau-Siegen and successor of John VIII, Count of Nassau-Siegen.
The marriage produced no children. George Frederick had two illegitimate children:
a daughter
Margaretha Sofia (d 1737), married Johann Fer in 1669.