Robert Lord de Ros, in consequence of the death of his father in the prime of life, succeeded to his estates at the early age of thirteen, and in the second year of the reign of Richard Coeur de Lion, (A. D. 1190,) he paid a fine of one thousand marks, (£666, 13_s._ 4_d._,) to the king for livery of his lands. In the eighth year of the same king, he was charged with the custody of _Hugh de Chaumont_, an illustrious French prisoner of war, and was commanded to keep him _safe as his own life_. He, however, devolved the duty upon his servant, William de Spiney, who, being bribed, suffered the Frenchman to escape from the Castle of Bonville, in consequence whereof the Lord de Ros was compelled by king Richard to pay eight hundred pounds, the ransom of the prisoner, and William de Spiney was executed.[521] On the accession of king John to the throne, the Lord de Ros was in high favour at court, and received by grant from that monarch the barony of his ancestor, Walter l'Espec. He was sent into Scotland with letters of safe conduct to the king of Scots, to enable that monarch to proceed to England to do homage, and during his stay in Scotland he fell in love with Isabella, the beautiful daughter of the Scottish king, and demanded and obtained her hand in marriage. He attended her royal father on his journey into England to do homage to king John, and was present at the interview between the two monarchs on the hill near Lincoln, when the king of Scotland swore fealty on the cross of Hubert archbishop of Canterbury, in the presence of the nobility of both kingdoms, and a vast concourse of spectators.[522] From his sovereign the Lord de Ros obtained various privileges and immunities, and in the year 1213 he was made sheriff of Cumberland. He was at first faithful to king John, but, in common with the best and bravest of the nobles of the land, he afterwards shook off his allegiance, raised the standard of rebellion, and was amongst the foremost of those bold patriots who obtained MAGNA CHARTA. He was chosen one of the twenty-five conservators of the public liberties, and engaged to compel John to observe the great charter.[523] he infant prince Henry, through the influence and persuasions of the earl of Pembroke, the Protector,[524] and he received from the youthful monarch various marks of the royal favour. He died in the eleventh year of the reign of the young king Henry the Third, (A. D. 1227,) and was buried in the Temple Church.[525] The above Lord de Ros was a great benefactor to the Templars. He granted them the manor of Ribstane, and the advowson of the church; the ville of Walesford, and all his windmills at that place; the ville of Hulsyngore, with the wood and windmill there; also all his land at Cattall, and various tenements in Conyngstreate, York.[526] Weever has evidently misapplied the inscription seen on the antient monument of Brother Constance Hover, the visitor-general of the order of the Temple, to the above nobleman.