Click to expand/collapse all other details

Male William De Rus Click to view William De Rus in the family tree

William was born about 1219.  William's father was Gilbert De Clare Of Hertford V Earl and his mother was Isabel Marshall.  His paternal grandparents were Richard De Clare Of Hertford IV Earl and Amicia Fitz Robert Of Gloucester; his maternal grandparents were William Marshal Of Pembroke I Earl and Isabel De Clare. He had two brothers and two sisters, named Richard De Clare, William, Amicia and Isabel. He has a half-brother named Richard De Cornwall.


William's family with Agatha De Clare

They had a daughter named Alice.

Page last modified

\