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Male John I d' Avesnes , Count of Holland Click to view John I d' Avesnes , Count of Holland in the family tree

John I d' was born about 1215 in Oizy, Namur, Belgium.  John I d''s father was Bouchard d' Avesnes , Archdeacon of Laon and his mother was Margaret Countess of Hainault & Flanders.  His paternal grandparents were Jacques d' Avesnes and Ameline (Adelphie) de Guise; his maternal grandparents were Baudouin IX Count (VI of Hainault) of Flanders and Marie de Champagne. He had a brother named Baudouin Comte d'.  He was the older of the two children. He had a half-brother named Guy III de.  He died in 1256 in Holland.

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