Question: What is the date of birth of Henri Duvillard's wife?
Sentence (from "Henri Duvillard"): His mother-in-law May Nilsson, father-in-law Maurice Lafforgue, wife Britt Lafforgue, elder brother Adrien Duvillard, nephew Adrien Duvillard and son-in-law Frédéric Covili are all Olympic alpine skiers.
Relevant evidence: Yes