Background
He was the son of Thomas III of Piedmont and Guyonne de Châlon.
Bishop of Turin Bishop of Maurienne
He was the son of Thomas III of Piedmont and Guyonne de Châlon.
Philip"s first marriage was celebrated in Rome on February 12, 1301 to Isabella of Villehardouin, Princess of Achaea. By that marriage, he became Prince of Achaea, though he had already been lord of Piedmont by inheritance from his father in 1282. As prince, Philip ventured to reconquer all of Lacedaemonia from the Greeks.
He was, however, an authoritative prince and this put him at odds with the baronage of his realm.
He tried to placate the barons of Morea, but was forced to accept a parliament in 1304. The Greek peasantry, crushed by taxes, then revolted in turn.
In 1312, Philip married Catherine de la Tour du Pin (died 1337), daughter of Humbert I of Viennois and had issue:
James of Piedmont
Eleanor married Manfred V of Saluzzo and had issue. Beatrice married Humbert de Thoire and had issue.
Agnes married John de la Chambre and had issue.
Joan married Aymer of Valentinois and had issue. Margarita married Renaud de Forez, lord of Malaval
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
Alice died in 1368. Isabelle, married John, viscount of Maurienne.