Question: What is the date of death of Ferdinand De La Cerda's mother?
Sentence (from "Violant of Aragon"): Violant or Violante of Aragon, also known as Yolanda of Aragon (8 June 1236 – 1301), was Queen consort of Castile and León from 1252 to 1284 as the wife of King Alfonso X of Castile.
Relevant evidence: Yes