A year after the kidnap of Willoughby, Eustace was serving in the armies of Edward III against the Scottish. He may well have fought at the Halidon Hill. In recognition of this military service, Eustace received another full pardon for his crimes. He was in combat again in 1337 and 1338, in Scotland and Flanders respectively. He finally died in 1347, a member of the council of the abbot of Crowland, having stood trial for none of the charges lodged against him. He is buried at St Mary's church, Ashby Folville. His monument has been badly damaged: a Victorian description states that 'the fragments of his helmet form the only part of his funeral achievement now remaining'.