William (Younger) PEVEREL
William (Younger) was born about 1080 in Nottinghamshire, England.  He died after 1155 in Bourn, Cambridgeshire, England.

 Avice de LANCASTER
Avice de was born in 1097 in Nottinghamshire, England.  She died after 1149.

 Margaret PEVEREL
Margaret was born about 1114 in Nottinghamshire, England.