Sir Robert de Ros ( – ) was an Anglo-Norman feudal baron, soldier and administrator who was one of the twenty-five barons appointed under clause 61 of Magna Carta to monitor its observance by King John of England.
Origins
Born about 1182, he was the son and heir of Everard de Ros (died before 1184) and his wife Roese (died 1194), daughter of William Trussebut, of Warter. The Ros family, from the village of Roos in Yorkshire, had in 1158 acquired the barony of Helmsley, also in Yorkshire, and before 1189 by gift of King Henry II the barony of Wark on Tweed in Northumberland.
Career
Left fatherless, his lands were initially in the keeping of the Chief Justiciar of England, Ranulf de Glanvill.
