Yvon Ier du Guermeur

Parents

• Guillaume du Guermeur (c. 1325 - ), chevalier, seigneur du Ponthou
• Amice de Coëtfao (c. 1330 - ), dame de Coëtfao

Family

• Married in June 1472, with Marguerite Provost, issuing
  • Hervé

Occupations

• écuyer du Duc de Bretagne (1422 - )