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Guillaume Beausault, de

Guillaume's father was Erard Montmorency, de and his mother was Jeanne Longueval, de. His paternal grandfather was Mathieu III. Montmorency, de and his paternal grandmother is Jeanne Brienne, de. He had a brother and three sisters, named Jean, Jeanne, Agnes and Blanche. He had four half-brothers named Erard, Mathieu, Herve and Jean Erard.

Ancestor Pedigree Chart
- Bouchard IV. Montmorency, de ^*
  - d.1189
  
  Mathieu II. Montmorency, de
  - d.1230
  
  Laurette Hainaut, de
  - d.1181
  
  Bouchard V. Montmorency, de
  - d.1243
  
  Gertrude Soissons, de
  
  Mathieu III. Montmorency, de
  - d.1270
  
  Guy V. Laval, de ^*
  
  Guy VI. Laval, de
  - d.1210
  
  Agathe ?
  
  Isabelle Laval, de
  
  Maurice II. Craon, de ^*
  - d.1196
  
  Avoise Craon, de
  - d.1230
  
  Isabelle Meulan, de
  
  Erard Montmorency, de
  - d.1334
  
  Jeanne Brienne, de
  
  Guillaume Beausault, de
  
  Jeanne Longueval, de
  - d.1305
  
  ^*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)