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Robert de Pierrepont & Ermengarde of Montagu

They had a son named William.

Personal Details
- Robert de Pierrepont
  Robert was born about 1060.¹ He died before 1113.¹
  
  Ermengarde of Montagu
  Ermengarde was born about 1063.¹ She died after 1123.¹

Children
- William de Pierrepont
  William was born about 1085.¹ He died about 1154.¹

¹ http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I79670&style=TABLE