[3] He was a deputy in Robert Knolles's army during the Hundred Years War,[4] although there is evidence to suggest that this was a shared command.
[4] He was later placed in command of Saint-Sauveur-le-Vicomte in Normandy, where he later claimed to have expended a large sum—more than he could account for—on paying ransoms of English prisoners.
He subsequently complained that he had to spend over 3,000 francs on "the payment of the ransoms of several bankrupt prisoners who had been captured by the French on different occasions".
[citation needed] King Edward III became ill in his later years, and the historian G. L. Harriss has argued that it was men such as Buxhull—of the household and physically close to the King—who "manipulated his authority" by regulating who was allowed to see him, and thus controlled the royal patronage.
[10] His choice of burial place may have been influenced by its proximity to the intended tomb of John of Gaunt (d.1399) and his first wife, Blanche of Lancaster (d.1368).