Clémence d'Oisy was born 1110 to Hugues II d'Oisy (c1075-c1137) and Hildéarde de Mons (1085-) and died 1164 of unspecified causes. She married Guillaume I de Béthune (1095-1144) 1129 JL . Notable ancestors include Charlemagne (747-814), Hugh Capet (c940-996). Ancestors are from France, Germany, Belgium.
|Offspring of Clémence d'Oisy and Guillaume I de Béthune (1095-1144)|
|Mathilde de Béthune (c1132-)|| |
|Robert V de Béthune (c1130-1191)||1130 Béthune||1191|| Adélaide de Saint-Pol (1130-c1177)|
|Benoît de Béthune|
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