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Male Duke Guillaume of Gascogne Click to view Duke Guillaume of Gascogne in the family tree

Guillaume of Gascogne's father was Duke Sancho III of Gascogne.  His paternal grandparents were Duke Garcio Sanchez of Gascogne and Munia.  He was an only child.  He died in 0977.


Guillaume of Gascogne's family with Urraca Garciez of Pamplona

They had a son named Sancho V of Castile.

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