William Alnwick (died 1449) was an English Catholic clergyman. He was Bishop of Norwich (1426–1436) and Bishop of Lincoln (1436–1449). Educated at Cambridge, Alnwick was an ecclesiastic priest. He was probably the same hermit who lived in the St Benet's Chapel that was screened off as part of Westminster Abbey. On the night of 20 March 1413, as King Henry IV lay dying in the Jerusalem Chamber, his son and heir apparent Prince Henry wandered the precincts and spoke to Alnwick. On 20 March 1415, Alnwick was appointed as confessor-general of Syon Abbey, but after a year returned to Westminster. During Henry V's reign he became Archdeacon of Salisbury, but by early 1421 had been appointed King's Secretary, and is recorded as attending Privy Council meetings. In the new reign he was forced to s