During Bedford's absence, the government of England was headed by Henry V's other surviving brother, Humphrey, Duke of Gloucester, who was appointed Lord Protector and Defender of the Realm. His duties were limited to keeping the peace and summoning Parliament. Henry V's uncle Henry Beaufort, Bishop of Winchester (after 1426 also Cardinal), had an important place on the Council. After the Duke of Bedford died in 1435, the Duke of Gloucester claimed the Regency himself, but was contested in this by the other members of the Council. From 1428, Henry's tutor was Richard de Beauchamp, Earl of Warwick, whose father had been instrumental in the opposition to Richard II's reign. For the period 1430–1432, Henry was also tutored by the physician John Somerset. Somerset's duties were to 'tutor the young king as well as preserving his health'. Somerset remained within the royal household until early 1451 after the English House of Commons petitioned for his removal because of his 'dangerous and subversive influence over Henry VI'. Henry's mother Catherine remarried to Owen Tudor and had two sons by him, Edmund and Jasper. Henry later gave his half-brothers earldoms. Edmund Tudor was the father of King Henry VII of England. In reaction to the coronation of Charles VII of France in Reims Cathedral on 17 July 1429, Henry was soon crowned King of England at Westminster Abbey on 6 November 1429, aged 7, followed by his own coronation as King of France at Notre Dame de Paris on 16 December 1431, aged 10. He was the only English king to be crowned king in both England and France. It was shortly after his crowning ceremony at Merton Priory on All Saints' Day, 1 November 1437, shortly before his 16th birthday, that he obtained some measure of independent authority. This was confirmed on 13 November 1437, but his growing willingness to involve himself in administration had already became apparent in 1434, when the place named on writs temporarily changed from Westminster (where the Privy Council met) to Cirencester (where the King resided). He finally assumed full royal powers when he came of age at the end of the year 1437, when he turned sixteen years old. Henry's assumption of full royal powers occurred during the Great Bullion Famine and the beginning of the Great Slump in England. Henry, who was by nature shy, pious, and averse to deceit and bloodshed, immediately allowed his court to be dominated by a few noble favourites who clashed on the matter of the French war when he assumed the reins of government in 1437.