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Male Guillaume de Montbéliard Click to view Guillaume de Montbéliard in the family tree

Guillaume de was born about 1086 in <,Bar-le-Duc,Meuse,France>.1   Guillaume de's father was Thierry II De Montbelliard Comte de Bar-le-Duc and his mother was Ermentrude of Burgundy.  His paternal grandparents were Louis II of Montbelliard and Sophia Countess of Bar-le-Duc; his maternal grandparents were Guillaume I "The Great" of Bourgogne Count/Bourgogne and Stephanie (Etienette) of Barcelona. He had nine brothers and eight sisters, named Renaud I Count of, Thierry III de, Renaud I, Louis de, Frederic, Count Friedrich I of, Etienne, Count Reinald I of, Bishop Stephan of, Princess Gunhild of, Mathilde, Marguerite De Montbelliard, Mechtild de, Agnes De, Clementia de, Gunthilde and Princess Irmtrud of.  He was the eighth youngest of the eighteen children. He had a half-brother named Count Ludwig of.

1 "Genealogical Research of Kirk Larson"
Further source/citation:
"FamilySearch® Ancestral File™ v4.19"

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