Ernald du Bois , of Thorpe Arnold
Ernald du was born about 1190 in Thorpe Arnold, Leicestershire, England.  He died before July 1255.

 Joan de Beauchamp
Joan de was born about 1192 in Standlake, Oxfordshire, England.

 Joan du Bois
Joan du was born about 1220 in Thorpe Arnold, Leicestershire, England.  She died before 1260.

 Arnold du Bois , of Thorpe Arnold
Arnold du was born about 1222 in Thorpe Arnold, Leicestershire, England.  He died on April 1st, 1277 in Weston-in-Arden, Warwickshire, England.