Catherine de la Tour du Pin (about 1290 - 1337), was the tenth child of Humbert I of Viennois and Anne d'Albon. She married Philip I of Piedmont. They had:
James of Piedmont
Eleanor married Manfred V of Saluzzo
Beatrice married Humbert de Thoire-Villars
Agnes married John de la Chambre
Joan married Aimée de Poitiers
Amadeus, Bishop of Maurienne from 1349-1376
Thomas, Bishop of Turin from 1351-1360
Edward, Archbishop of Tarentaise from 1386-1395
Aimone, married Mencia de Ceva, died 1398, was in Savoyard crusade
Isabelle, married John, viscount of Maurienne