FITZ-OSBERN, ROGER [ROGER FITZWILLIAM] (fl. io7o), succeeded to the earldom of Hereford and the English estate of William Fitz-Osbern in Io71. In 1075, disregarding William I.'s prohibition, he married his sister Emma to Ralph Guader, earl of Norfolk, at the famous bridal of Norwich, at which the two earls plotted a conspiracy against the king. Roger, who was to bring his force from the west to join the earl of Norfolk, was held in check at the Severn by the King's forces. On the collapse of his confederate's rising, Roger was tried before the Great Council (1075) deprived of his lands and earldom, and sentenced to perpetual imprisonment. He died in prison.