William I of Guelders and Jülich, Date of Birth, Date of Death
TweetWilliam I of Guelders and Jülich
Duke of Guelders and Julich
Date of Birth: 
About William I of Guelders and Jülich
- William I of Guelders and Jülich KG (5 March 1364 – 16 February 1402, Arnhem) was Duke of Guelders, as William I, from 1377 and Duke of Jülich, as William III, from 1393.
- William was known for his military activities, participating in the Prussian crusade five times and battling with neighbors in France and Brabant throughout his rule.
- His allies included Holy Roman Emperors, Charles IV and Wenceslaus, Richard II of England, and Conrad Zöllner von Rothenstein, the Grand Master of the Teutonic Knights.
- During his reign the duchies of Guelders and Jülich were temporarily unified.
Read more at Wikipedia