Thomas of Woodstock, 1st Duke of Gloucester created Lieutenant of Ireland but forbidden to actually travel there.
Penistone Grammar School, which will in the late 20th century become one of the first community comprehensive schools in England, is founded near Barnsley.
Richard II attempts to reassert authority over his kingdom by arresting members of a group of powerful barons known as the Lords Appellant.
September - Parliament condemns the Lords Appellant, impeaching Duke of Gloucester, Richard FitzAlan, 11th Earl of Arundel, and Thomas de Beauchamp, 12th Earl of Warwick.
1398
27 January - Parliament meets at Shrewsbury and annuls the acts of the 1388 Parliament.
3 February - Death of John of Gaunt, uncle of King Richard II and father of Henry Bolingbroke.
18 March - Richard II cancels the legal documents allowing the exiled Henry Bolingbroke to inherit his father's land.
23 April - St George's Day in England is first officially celebrated as a holiday.
1 June - Richard travels to Ireland to suppress a rebellion.
July - Henry Bolingbroke, with exiled former Archbishop of Canterbury Thomas Arundel as an advisor, returns to England and begins a military campaign to reclaim his confiscated land.
August - Having returned from Ireland, Richard is taken prisoner by Henry's followers at Conway Castle.
29 September - Abdication of Richard II, the first for an English monarch.
30 September - Parliament accepts Henry Bolingbroke as the new king.
13 October - Coronation of Henry IV of England.
21 October - Thomas Arundel is restored as Archbishop of Canterbury, replacing Roger Walden.