A lawyer and for more than 20 years clerk to the Wiltshire bench, Giles sat in all for as many as five local boroughs, in none of which, apparently, was he a resident burgess. His early history is obscure, but he may have been the John Giles of Netheravon, Wiltshire, who in 1406 was fined for committing adultery with Alice, Thomas Giles’s servant, and who in September 1411 entered into a recognizance with Nicholas Ryssheton, the diplomat. He was perhaps, too, the man of this name who was asked by Elizabeth Juliers, dowager countess of Kent, to be an executor of her will, made in April 1411, and who in the following year became a feoffee of lands in Hampshire, Wiltshire and Surrey belonging to John Uvedale, one of the witnesses to that document.
More certainly, from October 1425 Giles was one of the trustees of a small estate in Frome, Somerset, on behalf of John Frank, former clerk of Parliament and then master of the rolls. In May of the following year he acted as surety for another of Frank’s feoffees, John Twyneho, when the latter was granted the farm of the cloth subsidy in Somerset. Also in 1426, and in association with Robert Long, he was a trustee of the manor of Bupton, Wiltshire. Giles became known to prominent figures in government: he stood surety in November 1427 for Sir John Juyn, chief baron of the Exchequer, and two years later he was enfeoffeed of property at Charing Cross, Middlesex, belonging to Sir Walter (now Lord) Hungerford, the treasurer.
Giles is last recorded in July 1446, when he was among those for whose well-being prayers were to be offered in John St. Lo’s chantry at Calne: others mentioned included Robert Giles, the MP for Calne in 1442, who was probably one of John’s sons.
