William de Aldwark 
William was born in 1080 in Aldwark, Yorkshire, England.1 William's father was Reginald de Aldwark and his mother was <Unknown>. He was an only child.General Notes
Sources:
1. Author: Foster
Title: Pedigrees of the County Families of Yorkshire
Publication: Date: 1874;
Repository:
Name: Internet
Details of William's family with <Unknown>
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