Background
He was the son of Albert IV, baron of la Tour-du-Pin, and of Béatrice de Coligny (herself the daughter of Hugh I, lord of Coligny and of Béatrice d"Albon, dauphine of Viennois).
He was the son of Albert IV, baron of la Tour-du-Pin, and of Béatrice de Coligny (herself the daughter of Hugh I, lord of Coligny and of Béatrice d"Albon, dauphine of Viennois).
In 1294, Humbert became a vassal of King Philip IV of France in exchange for £500 annual pension, which would give impetus to the acquisition of the Dauphiné, by King Philip VI of France, fifty years later. John II (1280 † 1319), succeeded his father as dauphin of Viennois
Hugues († 1329), baron de Faucigny
Guigues († 1319), seigneur de Montauban. Alix (1280 † 1309), married John I (1275 † 1333), count of Forez in 1296
Marie, married Aymar de Poitiers-Valentinois
Marguerite, married Frederick I († 1336), marquis de Salucce in 1303
Béatrice (1275 † 1347), married Hugh I of Chalon-Arlay in 1312
Henri (1296 † 1349), bishop of Metz
Catherine († 1337), married Philip of Savoy (1278 † 1334), count of Piedmont and prince of Achaea in 1312.