Question: Who is Louis Charles De La Trémoille's paternal grandfather?
Sentence (from "Louis Charles de La Trémoille"): Prince Louis Charles de La Trémoille (26 October 1838 – 4 July 1911), 9th Duke of Thouars, 8th Duke of La Trémoïlle, 11th prince de Tarente, 15th prince de Talmond and 15th Count of Laval was a French aristocrat and the son of Charles Bretagne Marie de La Trémoille and his third wife, Valentine Eugénie Joséphine Walsh de Serrant.
Relevant evidence: Yes