Question: What is the date of death of Guy Iii, Count Of Saint-Pol's wife?
Sentence (from "Matilda of Brabant, Countess of Artois"): Matilda of Brabant (14 June 1224 – 29 September 1288) was the eldest daughter of Henry II, Duke of Brabant and his first wife Marie of Hohenstaufen.
Relevant evidence: Yes