Question: What is the date of birth of Jean Becquerel's father?
Sentence (from "Jean Becquerel"): In 1909, he became the fourth in his family to occupy the physics chair at the Muséum National d'Histoire Naturelle, following in the footsteps of his father, his grandfather A. E. Becquerel and his great-grandfather Antoine César Becquerel.
Relevant evidence: No