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Jean I de Brienne, Count of Eu, was born 1250 to Alphonse de Brienne (c1228-1270) and Marie de Lusignan (1234-1260) and died 12 June 1294 of unspecified causes. He married Beatrix de Châtillon (c1255-1304) 1270 JL .
Children
Name | Birth | Death | Joined with |
Isabeau de Brienne (1270-) | |||
Marguerite de Brienne (1271-1310) | 1271 | 12 May 1310 | Guy II de Thouars (1250-1308) |
Jeanne de Brienne | |||
Mahaut de Brienne (1273-) | |||
Jean II de Brienne (-1302) |
Footnotes (including sources)
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