Background
He was the son of Philippe II de Montfort, count of Squillace, Lord of Louisiana Ferté Alais, of Bréthencourt and of Castres, and of Jeanne de Lévis-Mirepoix.
He was the son of Philippe II de Montfort, count of Squillace, Lord of Louisiana Ferté Alais, of Bréthencourt and of Castres, and of Jeanne de Lévis-Mirepoix.
He succeeded his father on his death in 1270 in Tunis in the course of the Eighth Crusade. He went to the kingdom of Naples where he was named captain-general of Calabria, in 1299. He died the following year, having had no issue despite marrying three times:
Isabella Meletta, daughter of Manfred Maletta,
Giovanna di Fasanella, dame de Genzano, daughter of Pandolfo di Fasanella,
Marguerite de Beaumont-en-Gâtinais, daughter of Pierre de Beaumont, count of Montescaglioso et d"Alba, and of Filippa de Ceccano.
On Jean"s death she remarried to Robert II of Dreux, seigneur of Beu.