In Wykeham's twenty-third year Edward III came to Winchester, and he, having heard of the clever young architect, wished to test his skill in the warfare then being waged against Scotland and France, and particularly in the new fortifications of Calais. On taking service with the King, plain William Wykeham became Sir William de Wykeham, and as Surveyor of Works he superintended such buildings as St. Stephen's Chapel, Westminster, and the castles of Dover and Queensborough. In 1356 he was in charge of Windsor Castle, which, as his birthplace, Edward wished to beautify by many additions. It has been said that the Round Tower Wykeham built at Windsor made the fortune of its designer. We now find Wykeham Warden of all the royal castles, and sub-dean of the church of St. Martins-le-Grand, on the site of which is the General Post Office; and as a public notary he was present at the signing of the Treaty of Bretigny. Possibly owing to the dearth of clergy caused by the Black Death, Wykeham, after the laying-on of hands by his old master, Bishop Edington, became an acolyte in the December of 1361, a sub-deacon in the March following, and priest in the June of 1362. A few years later, when Edington was laid to rest within his cathedral, a sharp controversy arose between the King and the Pope as to who should succeed. The differences, which need not be discussed here, being eventually settled to the satisfaction of both parties, Wykeham was offered the vacant see, when he said to the King: "Sire, I am unworthy, but wherein I am wanting myself, that will I supply by a brood of more scholars than all the prelates of England ever showed". And how worthily he fulfilled his promise is a matter of history. To quote the authors of _Historic Winchester_: