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Male William de ST OMER Click to view William de ST OMER in the family tree

William de's father was Nicholas de ST OMER and his mother was Margaret de HUNGARY.  His paternal grandparents were William de ST OMER and Ida de AVESNES; his maternal grandparents were BELA III KING de HUNGARY and ANNE (Agnes) de CHATILLION.  He was an only child.


William de's family

He had a biological son named Thomas de.

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