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Male Boniface I de Montferrat , King of Thessalonica Click to view Boniface I de Montferrat , King of Thessalonica in the family tree

Boniface I de was born about 1150 in Montferrat, Italy.  Boniface I de's father was William V Margrave of Montferrat and his mother was Judith von Babenberg of Austria.  His paternal grandparents were Rainer Marquis of Montferrat and Gisela of Burgundy; his maternal grandparents were Leopold III "Saint" Margrave of Austria and Agnes Princess of Holy Roman Empire. He had a brother and two sisters, named Conrad Marquis de, Beatrix de and Alice de.  He was the second oldest of the four children.  He died on September 4th, 1207.


Boniface I de's family with Margaret Princess of Hungary

‌Boniface I de and Margaret Princess of were married in a religious ceremony in May 1204 in 2nd husband 2nd wife.

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