Question: When is Matilda Of Boulogne, Duchess Of Brabant's mother's birthday?
Sentence (from "Matilda of Boulogne, Duchess of Brabant"): Matilda of Boulogne (1170 – 16 October 1210) was the younger daughter of Matthew, Count of Boulogne and Marie I, Countess of Boulogne.
Relevant evidence: Yes