William, Lord of Roos Mauduit
Birth date:
ABT 1196
Birth place:
Helmsley Castle, Holderness, Yorkshire, England
 
Death date:
  1264
Death place:
  Poitou, , , France

Mauduit Family

Parents:
Father: Robert De Ross
Mother: Isabel Huntingdon
Spouse:
Spouse: Lucy Fitz Piers
 
Siblings:
William DeRos
Robert DeRos
Robert Werke Hamelake Ros
William De Ros
Thomas De Ros
Everard De Roos
Sacer De Ross
Everhard De Ros
Isabel de Roos
Isabel De Ros
William Ii De Ros Lord of Helmsley
Living Ros
William Ros of Heimsley
William (5th Lord of Hamlake) De Ros
William IV De Ros
William, Lord of Roos Mauduit
Gilber Ross
De Ros
Robert De Ross
Children:
Robert IV, of Belvoir de Ros
William de Ros