Question: What is the date of death of Henry Of Almain's mother?
Sentence (from "Henry of Almain"): As a nephew of both Henry III and Simon de Montfort, he wavered between the two at the beginning of the Barons' War, but finally took the royalist side and was among the hostages taken by Montfort after the Battle of Lewes (1264), was held at Wallingford Castle and later released.
Relevant evidence: No