Guillaume de Blois
Guillaume de Boulogne
- Deceased in 1159
Parents
- Étienne de Blois, Etienne of England (1092 - 1154), King of England
- Mathilde de Boulogne (1103 - 1152), comtesse de Boulogne
Family
- Married in 1147, with Isabelle de Warenne ( - 1199), without issue.