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
Castles and Town Walls of King Edward in Gwynedd to conduct negotiations with the king. Henry Percy took an oath in the castle chapel to protect the king if he agreed to leave the castle, but when Richard left he was promptly taken prisoner, and was taken away to die later in captivity at Pontefract Castle. Tensions between the Welsh and the English persisted and spilled over in 1400 with the outbreak of the Glyndŵr Rising. At the start of the conflict, Harlech's garrison was badly equipped, and Conwy had fallen into disrepair. Conwy Castle was taken at the start of the conflict by two Welsh brothers, who took