Keston’s will shows that he came from Leicestershire, where, at least by his death, he held property at Laughton in the south of the county. His place of birth, however, was probably Leicester, if one may judge from his bequests to churches there and his provision for prayers for the soul of a former burgess, William Grantham*.
Against this meagre background, it is difficult to explain Keston’s election for the Wiltshire borough of Heytesbury. Some impropriety appears to have attached to the return. On 24 Feb. 1453 the sheriff of Wiltshire, Edward Stradling, drew up an indenture with the burgesses of the borough, but there can be no doubt that this indenture was subsequently amended. The names of the MPs originally elected have been erased, and those of Keston and Thomas Cross* have been added over the erasure.
If Keston did have a place in the royal household at the time of his election, it was one he was able to maintain and enlarge after the change of regime in 1461. On the first day of the new reign he was appointed as one of the new King’s serjeants-at-arms, a post which involved periods of attendance about the King’s person and had a generous daily wage 12d. This appointment was confirmed on the following 18 July when, described as a King’s esquire, he was granted the office for life.
The obscurity surrounding Keston’s career lifts only with his death. He left a long and revealing will, drawn up on 26 Nov. 1472 when the testator was ‘visited with sikenesse’.
Keston was dead by 26 Mar. 1473, when his will was proved, and on the following 7 Apr. William Cheyne was appointed to his place among the royal serjeants-at-arms. His widow was still alive in 1475, when, in company with Thomas Ashwell, she was summoned into Chancery to answer Robert Tailboys†, son and heir of (Sir) William Tailboys, concerning a London tenement that our MP had allegedly held to William’s use.
