Jean married Plantagenet, Princess Of England Beatrice 22 Jan 1259, St Denis, , Seine, France. Beatrice (daughter of Plantagenet, King Of England Henry III and de Provence, Queen of England Eleanor of Provence, daughter of Plantagenet, King Of England Henry III and Berengar, Cts/Provence Eleanor) was born 25 Jun 1242, , Bordeaux, Gascony, France; died 24 Mar 1275, London, England; was buried , Grey Friars, London, Middlesex, England. [Group Sheet]

1. Bretagne, Duke Arthur II was born 25 Jul 1262, of, Rennes, Ille-Et-Vilaine, France; died 27 Aug 1312, Castle Of Ile, Roche Bernard, Morbihan, France.
2. Bretagne, Princess of Bretagne Blanche was born Abt 1264, of, Rennes, Ille-Et-Vilaine, France; died 19 Mar 1327, , Vincennes, Seine, France.
3. Bretagne, Prince of Bretagne Jean was born 1266, of, Rennes, Ille-Et-Vilaine, France; died 17 Jan 1333, Dsp, , , France; was buried , Cordeliersnantes.
4. Bretagne, Princess of Bretagne Marie was born 1268, of, Rennes, Ille-Et-Vilaine, France; died 5 May 1339, , , , France; was buried , Abbey Of Cercamp.
5. Bretagne, Prince of Bretagne Henri was born Abt 1270, of, Rennes, Ille-Et-Vilaine, France; died 1284, , , , England.
6. Bretagne, Prince of Bretagne Pierre was born Abt 1272, of, Rennes, Ille-Et-Vilaine, France; died 1312, Sp.
7. Bretagne, Princess of Bretagne Elsonore was born 1275, of, , , England; died 16 May 1342, , Fontevrault L'Ab, Maine-et-loire, France.
8. Bretagne, Prince of Bretagne Guy was born Abt 1277, of, Rennes, Ille-Et-Vilaine, France.
9. Bretagne, Princess of Bretagne Alice was born Abt 1279, of, Rennes, Ille-Et-Vilaine, France.