Question: When is William D'Aubigny, 2Nd Earl Of Arundel's mother's birthday?
Sentence (from "William d'Aubigny, 2nd Earl of Arundel"): William d'Aubigny, 2nd Earl of Arundel (b. [1138-1150], d. 24 December 1193), also called William de Albini III, was the son of William d'Aubigny, 1st Earl of Arundel and Adeliza of Louvain, widow of Henry I of England.
Relevant evidence: Yes