William I, Count of Holland
William I was count of Holland from 1203 to 1222. He was the younger son of Floris III and Ada of Huntingdon. Wikipedia
Born: 1167, The Hague, Netherlands
Died: February 4, 1222 (age 55 years), The Hague, Netherlands
Grandchildren: William II of Holland, Adelaide of Holland, Floris de Voogd, and more
Parents: Floris III, Count of Holland and Ada of Scotland
Children: Floris IV, Count of Holland, Otto III van Holland, and Ada of Holland
Spouse: Maria of Brabant, Holy Roman Empress (m. 1220) and Adelaide of Guelders (m. 1197)