Career
Originally a ward of Ranulph de Granville, he seems to have been wealthy as in 1176 he paid the then large sum of five hundred and twenty-six pounds as a fine for his lands, and other large amounts subsequently. He was the son of Robert de Ros and Sybil de Valoines. Everard de Ros married Rose Trusbut (in 1170 or 1171) with whom he had two sons, the oldest of which, Robert de Ros, became a Magna Carta surety.