Willem I, Count of Holland

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ChartsAncestors of Adele La Force
Ancestors of Harriet Hanson Robinson
Willem I, Count of Holland, son of Floris III, Count of Holland and Ada of Scotland, was born about 1170.1 He died 4 February 1222/23.2

Willem married (1) Aleide of Guelders, daughter of Otto I, Count of Guelders and Richardis von Wittelsbach, in 1197;2 he married (2), as her 2nd husband, Maria of Brabant, daughter of Henry I, Duke of Brabant & Lower Lorraine and Mathilda of Flanders, July 1220.3

Family 1

Aleide of Guelders d. 4 Feb 1218

Family 2

Maria of Brabant d. bt 9 Mar 1260 - 14 Jun 1260
This person was last edited on18 Jun 2021


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 3:298 (Holland 5), further cited as Richardson, Royal Ancestry.
  2. [S1947] Richardson, Royal Ancestry, 3:299 (Holland 5).
  3. [S1947] Richardson, Royal Ancestry, 1:30 (England 4.iii.a), 3:299 (Holland 5).