谁嫁给了Robert I, Count of Artois？

Robert I (25 September 1216 – 8 February 1250), called the Good, was the first Count of Artois. He was the fifth (and second surviving) son of King Louis VIII of France and Blanche of Castile.

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.