everyone including secular and canon lawyers for 13 years. In June 1473, Richard persuaded his mother-in-law to leave the sanctuary and come to live under his protection at Middleham. Later in the year, under the terms of the 1473 Act of Resumption, George lost some of the property he held under royal grant and made no secret of his displeasure. John Paston's letter of November 1473 says that King Edward planned to put both his younger brothers in their place by acting as "a stifler atween them". Early in 1474, Parliament assembled and Edward attempted to reconcile his brothers by stating that both men, and their wives, would enjoy the Warwick inheritance just as if the Countess of Warwick "was naturally dead". The doubts cast by George on the validity of Richard and Anne's marriage were addressed by a clause protecting their rights in the event they were divorced (i.e. of their marriage being declared null and void by the Church) and then legally remarried to each other, and also protected Richard's rights while waiting for such a valid second marriage with Anne. The following year, Richard was rewarded with all the Neville lands in the north of England, at the expense of Anne's cousin, George Neville, 1st Duke of Bedford. From this point, George seems to have fallen steadily out of King Edward's favour, his discontent coming to a head in 1477 when, following Isabel's death, he was denied the opportunity to marry Mary of Burgundy, the stepdaughter of his sister Margaret, even though Margaret approved the proposed match. There is no evidence of Richard's involvement in George's subsequent conviction and execution on a charge of treason. Reign of Edward IV Estates and titles Richard was granted the Duchy of Gloucester on 1 November 1461, and on 12 August the next year was awarded large estates in northern England, including the lordships of Richmond in Yorkshire, and Pembroke in Wales. He gained the forfeited lands of the Lancastrian John de Vere, 12th Earl of Oxford, in East Anglia. In 1462, on his birthday, he was made Constable of Gloucester and Corfe Castles and Admiral of England, Ireland and Aquitaine and appointed Governor of the North, becoming the richest and most powerful noble in England. On 17 October 1469, he was made Constable of England. In November, he replaced William Hastings, 1st Baron Hastings, as Chief Justice of North Wales.