William III de Ros,
Birth date:
1255
Birth place:
Helmsley Castle, North Riding, Yorkshire, England
 
Death date:
  1317
Death place:
  Helmsley Castle, North Riding, Yorkshire, England

de Ros, Family

Parents:
Father: Robert De Ros
Mother: Margaret de Brus,
Spouse:
Spouse: Maud De Vaux
 
Siblings:
William III de Ros,
Children:
Anges De Ros
Margaret De Ros
William 2nd Lord de Roos
William de Ros
William de
William IV 2nd Baron De, of Helmsley, Mp Ros
Alexander de Ros
William IV De Ros
Anne de Ros
William De Ros
Prob. George de Ros
Joan De Ros
Mary de Ros
Thomas de Ros
Agnes (Anne) de Ros
Living
William De Ros Iv Baron Ros
William De Ros Ii Lord Helmsley
William De Roos