William de Pierrepont I
He has a biological son and a biological daughter, named
Hugh
and
Mabilia
.
Personal Details
William de Pierrepont I
He died about 1154.
Children
Mabilia Pierrepont
Mabilia was born in 1120 in
Darlaston, Staffordshire, England
.
Hugh de Pierrepont
Hugh was born in
Hurst, Sussex, England
.
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William de Pierrepont I 
William de Pierrepont I