On 14 Feb 1400 (exact date not known) King Richard II (age 33) died at Pontefract Castle [Map] where he had been imprisoned three months before; possibly murdered, possibly starved to death. His death was a consequence of the Epiphany Rising; he was still considered a threat. His first cousin Philippa Plantagenet Countess March 5th Countess Ulster de jure Heir to the Throne of England since she was the daughter of Lionel Plantagenet 1st Duke of Clarence. She at this time had four children with her husband Edmund Mortimer 3rd Earl March, Earl Ulster. The new King Henry IV (age 32) ignored her claim.

On 17 Feb 1400 Richard's (deceased) corpse was displayed at St Paul's Cathedral [Map].

On 06 Mar 1400 Richard's (deceased) remains were buried at King's Langley Priory, Hertfordshire [Map].