Guy Mone (Mohun[1]) (died 1407) was an English royal administrator and bishop.

He held the offices of Receiver of the Chamber (1391 to 1398) and Master of the Jewel Office (1391 to 1398), Keeper of the Privy Seal (1396 to 1397) and Lord High Treasurer (1398) towards the end of the reign of Richard II of England, and was one of Richard's supporters.[2][3]

He was bishop of St David's from 1397 to his death,[4] being appointed on 30 August and consecrated on 11 November 1397.[5]


  1. ^ Dictionary of National Biography
  2. ^ Michael Bennett, Richard II and the Revolution of 1399 (1999), especially p. 160.
  3. ^ John Smith Roskell, Parliament and Politics in Late Medieval England II (1981), p. 60.
  4. ^ E. B. Fryde, Handbook of British Chronology (1996), p. 106.
  5. ^ taken from the notes at Bishop of St David's
Political offices Preceded byEdmund Stafford Lord Privy Seal 1396–1397 Succeeded byRichard Clifford Preceded byRoger Walden Lord High Treasurer 1398–1398 Succeeded byWilliam Scrope Preceded byHenry Bowet Lord High Treasurer 1402 Succeeded byWilliam de Ros, 6th Baron de Ros Catholic Church titles Preceded byJohn Gilbert Bishop of St David's 1397–1407 Succeeded byHenry Chichele