Parents
- Willem van Holland (1167 - 1222), graaf van Holland
- Aleid van Gelre ( - 1218)
Family
- Married on December 6, 1224, with Mathilde de Brabant (c. 1200 - 1267), issuing
Willem II (1227 - 1256)
Marguerite ( - 1290)- Floris (c. 1228 - 1258)
- Aleid (c. 1228 - 1284)