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Pierre I Mauclerc Capet-Dreux de Bretagne, Earl of Richmond, was born circa 1187 to Robert II de Dreux (1154-1218) and Yolande de Coucy (c1164-1222) and died May 1250 of unspecified causes. He married Alix de Thouars (1201-1221) 1213 JL . He married Nicole (c1205-1232) 1230 JL . He married Marguerite de Montaigu (1189-1241) 1236 JL .
Children
Name | Birth | Death | Joined with |
Jean I de Bretagne (1217-1286) | 1217 | 8 October 1286 | Blanca de Navarra (1226-1283) |
Yolande de Bretagne (1218-1272) | 1218 | 10 October 1272 | Hugues XI de Lusignan (1221-1250) |
Arthur de Bretagne (1220-1224) |
Name | Birth | Death | Joined with |
Olivier de Braine (1231-1279) |