Guillaume VI de BETHUNE 
Guillaume VI was born in 1278.1 Guillaume VI's father was Guillaume V de BETHUNE and his mother was Jeanne de NESLE. His paternal grandparents were Guillaume IV de BETHUNE and Beatrix d'HEBUTERNE; his maternal grandparents were Jean de NESLE and Jeanne de DAMMARTIN. He was an only child. He died at the age of 62 in 1340.1 
They had a son named Jean I (Signeur).
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