1. Renaud de Bar was born circa 1090 in Dammartin, Ile-de-France. He married Gisele de Vaudemont circa 1115 in Dammartin.
Gisele de Vaudemont was born circa 1095 in Ile-de-France. She and Renaud de Bar had the following children:
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2. Clemence Bar, daughter of Renaud de Bar and Gisele de Vaudemont, was born circa 1122 in Dammartin, Ile-de-France. She married Count Renaud II of Clermont.
Count Renaud II of Clermont, son of Hugh de Clermont (c. 1030-1101) and Margaret de Montdidier (c. 1046- ), was born circa 1108 in Clermont, Oise. He died in 1162 in Beauvaises. He and Clemence Bar had the following children:
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3. Maud (Mahaut) de Ponthieu, daughter of Count Renaud II of Clermont and Clemence Bar, was born circa 1150 in Ponthieu, Ain, France. She died after October 1200. She married Count Aubrey II (Alberic) of Dammartin.
Count Aubrey II (Alberic) of Dammartin was born circa 1147 in Dammartin, Seine-et-Marne. He died on 19 September 1200. He was buried in Jumiege Abbey, Seine-Maritime. He and Maud (Mahaut) de Ponthieu had the following children:
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| 5 | Reynold le Simon de Dampmartin COUNT OF BOULOGNE AND PONTHIEU ( - ) |