William's career took a turn by 1361, when he became a royal secretary, part of the administration of the royal finances, and by 1363 he was a royal councillor. He was present when the
Treaty of Brétigny was agreed in Calais in 1360. In January 1361, Edward III and
John II of France jointly to petitioned
Pope Innocent VI, to make William a
canon at
Lincoln Cathedral. He was appointed
Justice in Eyre south of the
Trent along with
Peter Atte Wode in 1361, a position he held until about 1367. William was ordained in 1362 and paid for his services by being given the incomes of various churches. For instance, in April 1363, Edward III presented him to the
archdeaconry of Lincoln, a move that was approved by
Pope Urban V in November 1363 only after representations from
Sir Nicholas de Loveyne, the king's ambassador to the papal court. By 1366, William held two
benefices and eleven
prebends, with an annual income exceeding £800. William had shown considerable talent as an administrator and in June 1363 was appointed
Lord Privy Seal and then in October 1366 he was elected
Bishop of Winchester, Pope Urban V approved his appointment in July 1367, and he was consecrated at St Paul's Cathedral in London on 10 October 1367 and enthroned at Winchester Cathedral in July 1368. In 1367 he was appointed
Chancellor of England. He struggled to find the funds necessary to pay the army fighting against France after conflict resumed in 1369. He lost the favour of the king, who turned to
William Latimer, 4th Baron Latimer, and he resigned as Chancellor in 1371. As Edward III aged and weakened, William maintained good relationships with
Edmund Mortimer, 3rd Earl of March,
John of Gaunt and
Edward, the Black Prince. He remained politically important, and was one of four bishops appointed to the new royal council in May 1376 after Latimer was
impeached during the
Good Parliament. His friendship with the Earl of March led to a long conflict with
John of Gaunt, who supported Latimer. Latimer was pardoned by king in October 1376, and William found himself charged with financial irregularities and mismanagement towards the end of the year. He was banished from court and the income from his church properties was seized in late 1376, but he was pardoned by the new king
Richard II in July 1377, weeks after Edward III died. (Richard was the son of Edward, the Black Prince, who had died in June 1376, a year before his father.) ==Richard II==