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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 on May 1st, 1218 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 (Adela) 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 at the age of 38 in 1256 in Holland.


John I d''s family with Adelaide (Aleidis) of Holland

‌John I d' and Adelaide (Aleidis) of were married in a religious ceremony on October 9th, 1246.  They had a son named John II d'.

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