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Male Guillaume I Signeur de MONTAGU Click to view Guillaume I Signeur de MONTAGU in the family tree

Guillaume I Signeur's father was Eudes I Signeur de MONTAGU and his mother was Elizabeth de COURTENAY.  His paternal grandparents were ALEXANDER SIGNEUR de BOURGOGNE and BEATRIX DAME de RION; his maternal grandparents were PETER II COUNT de COURTENAY and YOLANDE (Countess) de FLANDERS. He had four brothers and four sisters, named Alexander II Signeur de Bussy, Eudes Signeur de Cortiambles, Gaucher Signeur de Jambles, Philippe Signeur de Chagny, Marguerite Dame de Villeneuve, N.N., N.N. and N.N..


Guillaume I Signeur's family with Jacquette Dame de SOMBERNON

They had a son named Alexander Signeur de Sombernon.

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