Person

William I, Count of Nassau-Siegen

1487–1559 · 16th century

William I, Count of Nassau-Siegen, also called William the Rich, ruled the German lands of the house of Nassau from Dillenburg. He introduced the Lutheran Reformation in his territories. His eldest son was William the Silent, who inherited the principality of Orange and led the Dutch Revolt, making him the ancestor of the house of Orange-Nassau.

William I, Count of Nassau-Siegen
Image: Johannes Tideman · Public domain · Wikimedia Commons

Mentioned in 1 state history

County of Nassau-Dillenburg

See also

Cite this entry
APA
The Epoch Institute. (2026). William I, Count of Nassau-Siegen. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/william-i-count-of-nassau-siegen
MLA
“William I, Count of Nassau-Siegen.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/william-i-count-of-nassau-siegen. Accessed .
Chicago
The Epoch Institute. “William I, Count of Nassau-Siegen.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/william-i-count-of-nassau-siegen.
Harvard
The Epoch Institute (2026) ‘William I, Count of Nassau-Siegen’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/william-i-count-of-nassau-siegen (Accessed: ).

Last reviewed October 2026Random entry ↻