Walter Devereux (died 1402) and landed in Wales on 24 July, Devereux was probably among the rebel forces that eventually captured the king at Flint Castle. Following Richard II's abdication, Bolingbroke was crowned Henry IV on 13 October 1399. Walter Devereux was appointed to a Commission of array in Herefordshire on 18 December 1399. On 6 January 1400 Henry IV did not show up for the Epiphany feast being forewarned of a plot, and the conspirators scattered only to be captured, killed, and attainted over the next 2 weeks. In mid-August 1400 Henry IV led an army into Scotland to suppress raiding, and Walter
Robert Waterton IV. In 1391 he was appointed Master Forester at Pontefract Castle, and in that year accompanied Bolingbroke to the siege of Vilnius. He was with Bolingbroke when he returned to Vilnius in the following year. From 1392 he received a yearly fee from Bolingbroke of £6 13s 4d, and in 1398 Bolingbroke granted him an additional annuity of 10 marks. In 1399 he was Steward and Constable at Pontefract, as well as Constable at Tickhill Castle and Castle Donnington, positions which 'made him a dominant figure in the West Riding of Yorkshire and in north Nottinghamshire'. He remained in these