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Male Mathieu (Matthew) I de Montmorency Click to view Mathieu (Matthew) I de Montmorency in the family tree

Mathieu (Matthew) I de was born about 1090 in Montmorency, Val d'Oise, Ile-de-France, France.  Mathieu (Matthew) I de's father was Bouchard IV de Montmorency and his mother was Agnes de Beaumont.  His paternal grandparents were Herve de Montmorency , Seigneur Marly Devil and Agnes d' Eu; his maternal grandparents were Ives III de Beaumont , Count Beaumont-Sur-Oise and Adelaide (Adeliz) de Ponthieu. He had a sister named Adeline (Adelaide) de.  He was the older of the two children.  He died on October 28th, 1160.

Mathieu (Matthew) I de's first family with Adelaide of Savoy

‌Mathieu (Matthew) I de and Adelaide of were married in a religious ceremony after 1141 in 2nd husband 2nd wife.

Mathieu (Matthew) I de's second family with Alice of England

‌Mathieu (Matthew) I de and Alice of were married in a religious ceremony in 1st wife.

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