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Marie de Brienne, Dame of Margon, was born circa 1265 to Louis de Brienne (c1235-1263) and Agnès de Beaumont-au-Maine (c1225-1301) and died 1328 of unspecified causes. She married Henri III d'Avaugour (1247-1301) 1270 JL .


Children


Offspring of Henri III d'Avaugour (1247-1301) and Marie de Brienne
Name Birth Death Joined with
Henri IV d'Avaugour (1280-1334)
Marguerite d'Avaugour (1285-c1332) 1285 1332 Guillaume V Paynel (1275-c1327)
Guillaume d'Avaugour (-1341)
Agnès d'Avaugour
Blanche Clémence d'Avaugour (c1290-1345)
Jean d'Avaugour (1291-1340)
Jeanne d'Avaugour
Marie d'Avaugour






Footnotes (including sources)

‡ General
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