Robert de Pierrepont , Seigneur de Montaigu 
Robert de was born about 1060 in Pierrepont, Neufchatel, Seine-Inferiure, Normandy, France. Robert de's father was Ingelram (Ingobrand) Seigneur de Pierrepont. He had a brother named Rainald (Reginald) de. He was the younger of the two children. He died before 1113 in Hurst, Suffolk, England.
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