Jean Brienne de Beaumont, Viscount of Beaumont, Lord of Sainte-Suzanne, Lord of Lude, Lord of Château-Gontier, was born circa 1255 to Louis de Brienne (c1235-1263) and Agnès de Beaumont-au-Maine (c1225-1301) and died circa 1305 of unspecified causes. He married Jeanne de La Guerche (1250-1290) 1265 JL . He married Marie de Mechelen (1265-1306) 1305 JL . Notable ancestors include Charlemagne (747-814), Henry II of England (1133-1189), William I of England (1027-1087), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from Spain, Portugal, France, the United Kingdom, Germany, Belgium, the Netherlands, Italy, Russia, Ukraine, Canaan.


Offspring of Jean de Beaumont and Jeanne de La Guerche (1250-1290)
Name Birth Death Joined with
Isabelle de Brienne (1275-)
Robert de Brienne (1275-1327) 1275 28 September 1327 Marie de Craon (1290-1322)
Marie d'Astort (1300-)

Anne de Brienne (1280-)

Common ancestors of Jean de Beaumont (c1255-c1305) and Jeanne de La Guerche (1250-1290)

  1. Henry I of England (1068-1135)
  2. Matilda of Scotland (c1080-1118)
  3. Nest ferch Rhys (c1073-aft1136) 

Footnotes (including sources)

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