Question: Who is the maternal grandfather of Hélie De Talleyrand-Périgord (Cardinal)?
Sentence (from "Hélie de Talleyrand-Périgord (cardinal)"): Hélie was born at Périgueux, third son of Elias VII, Count of Périgord, and Brunissende of Foix, daughter of Roger Bernard III, comte de Foix.
Relevant evidence: Yes