He was the son of James of Piedmont and Sibylle des Baux. On September 19, 1362, he married Alix de Thoire de Villars, but he had no children. He succeeded James, but died within a year of that date, leaving his titles to his brother Amadeus.
The paternity to Umberta a nun (Filippina de Storgi) is probably his.
Tradition says that he was saved in 1368 by intercession of the Beaste Umberto of Savoie by a medal that he carried. He lived in Fatima in Spain, and is believed to have died in 1418.