Which woman was the sister of XXX?
Thomas de Foix-Lescun
Thomas de Foix-Lescun (died 3 March 1525), commonly known as Lescun, was a French commander during the Italian War of 1521, and the brother of Odet de Foix, Vicomte de Lautrec, André de Foix, Lord of Lesparre and Françoise de Foix.
Françoise de Foix