Guillaume Coz d'Avranches was born circa 1050 to Guimond d'Avranches (c1020-c1067) and died circa 1087 of unspecified causes. He married Mathilde de Brionne . Charlemagne (747-814)/s.


Offspring of Guillaume d'Avranches and Mathilde de Brionne
Name Birth Death Joined with
Fille d'Avranches (c1087-c1140) 1087 1140 Guillaume II Paynel (1094-c1147)
Robert d'Avranches
Ruallon d'Avranches (-1147)

Footnotes (including sources)

‡ General
Ω Birth
  • year of birth from brother
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