Simon (De St. Liz) De Senlis Earl of Northampton

Simon (De St. Liz) De was born about 1068 in Normandy, France.  Simon (De St. Liz) De's father was Ranulph Vicomte of Bessin and his mother was Alice (Alix) Of Normandy.  His paternal grandfather was Ancitel Vicomte of Bessin. He had a brother and a sister, named Ranulph II Of and Dau Fitzranulf De. He had a half-brother named Ranulph de.  He died before 1113 in La Charite-Sur-Loir, Nievre, France.  He was buried in La Chartrie, Mayenne, France.

‌Simon (De St. Liz) De were married in a religious ceremony about 1089 in Huntingdonshire, England.