Jean Brienne de Beaumont, Viscount of Beaumont, Baron of Sainte-Suzanne, Lord of Château-Gontier, Lord of Pouancé, Lord of La Guerche, was born 1302 to Robert de Brienne (1275-1327) and Marie de Craon (1290-1322) and died 1355 of unspecified causes. He married Isabeau d'Harcourt . He married Marguerite de Poitiers-Valentinois (c1312-1380) 31 December 1330 JL . William I of England (1027-1087), Henry II of England (1133-1189), Charlemagne (747-814), Hugh Capet (c940-996), Rollo of Normandy (860-932), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Hugh Capet (c940-996)/s, William I of England (1027-1087)/s, Rollo of Normandy (860-932)/s.


Offspring of Jean de Beaumont and Isabeau d'Harcourt
Name Birth Death Joined with
Marie de Brienne (-1372)

Offspring of Jean de Beaumont and Marguerite de Poitiers-Valentinois (c1312-1380)
Name Birth Death Joined with
Louis II de Brienne (-1364)
Marguerite de Brienne (c1335-c1408) 1335 1408 Bouchard de Vendôme (c1323-1373)


Footnotes (including sources)

‡ General