| Jean I "le Roux" of Brittany Duke of Brittany, Earl of Richmond (1217 - 1286) |
Henry III Plantagenet of England King of England (1207 - 1272) |
| Blanche of Navarre ( - 1283) |
Eleanor Berenger of Provence Css. of Provence, Q. of England (~1223 - 1291) |
| Jean of Brittany Knt., Duke of Brittany, Earl of Richmond | Beatrice (or Béatrice) of England |
| b. 4 Jan 1238/9 d. 14 Nov 1305, (Or 15 Nov 1305) Lyons, France bur. Church of the Carmelites, Ploërmel, Brittany occ. cen. im. . ud. |
b. 25 Jun 1242, Bordeaux, Gascony, France d. 24 Mar 1274/5, (Or 25 April 1277) London, Middlesex, England bur. Grey Friars, London, Middlesex, England occ. cen. im. . ud. |
| Marie of Brittany Arthur II of Brittany Duke of Brittany John of Brittany Knt., Earl of Richmond Pierre Morliaux of Brittany Vicomte of Léon |