Isabel de Bolebec

Isabel de Bolebec, Countess of Oxford (c. 1164 – 2 or 3 February 1245), was the eldest daughter and co-heiress of Hugh de Bolebec II, Lord of Whitchurch, Buckinghamshire, and his wife, Margaret de Montfichet. She married Robert de Vere, 3rd Earl of Oxford, and was a benefactress of the Order of Friars Preacher (Dominicans) in England.