- Born on March 8, 1286 in Champtoceaux
- Deceased on April 30, 1341 in Caen, at the age of 55 years
Parents
- Arthur II de Bretagne (1262 - 1312), duc de Bretagne
- Marie de Limoges ( - 1291), vicomtesse de Limoges
Family
- Married in 1297, with Isabelle de Valois (1292 - 1309)
- Married with Isabelle de Castille et Léon (1283 - 1328)
- Married with Giovanna di Savoia (1310 - 1344)
- Relationship with N N, issuing