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Female ADELHEID HEIRESS de HOLLAND Click to view ADELHEID HEIRESS de HOLLAND in the family tree

ADELHEID HEIRESS' father was FLORENZ IV COUNT de HOLLAND and her mother was MECHTILD de BRABANT.  Her paternal grandparents were WILLIAM I COUNT de HOLLAND and ADELAIDE (Countess) de GUELDERS; her maternal grandparents were HENRY I DUKE de BRABANT and MATHILDA (Maud) HEIRESS de BOULOGNE.  She was an only child.


ADELHEID HEIRESS' family with JOHN (Jean) (Count) de AVESNES

‌ADELHEID HEIRESS and JOHN (Jean) (Count) were married in a religious ceremony on October 9th, 1246.1   They had a son named JOHN (Jean) I (2nd Count).

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