Although little is known about Colys’s personal circumstances, in his day he appears to have been a man of some standing in his native town of Liskeard, where he traded as a cutler. Many of his activities are difficult to distinguish from those of a younger namesake, probably his son, who seems to have been of age by the early months of 1418, when the two men were joint parties to a dispute with Reynold Toker* (Colys’s parliamentary colleague in 1426) over an unspecified trespass.
The full extent of the property of the Colys family is uncertain, but the MP is known to have owned a croft in the ‘seigneury’ of Liskeard, which they held by grant of John Jaybien†. In March 1429 this property became the subject of a dispute with the powerful Sir Ralph Botreaux* who claimed to have been disseised by the two Johns. The matter was brought to trial at the Cornish assizes, but a jury which appeared before the justices was quashed on the grounds that the sheriff, Sir William Talbot†, was married to Sir Ralph’s kinswoman Eleanor Peverell.
Not long after Colys’s spell in the Commons, he and his colleague Toker were charged by a Somerset jury with the serious offence of clipping some 30 oz. of gold nobles and passing the metal thus gained on to professional counterfeiters. In August 1430 the two men were cleared of this charge at the Somerset assizes,
In spite of these accusations, Colys continued to play a leading part in Liskeard life. He was regularly among the burgesses attesting his neighbours’ property deeds at the guildhall,
In late 1439 Colys was drawn into a serious political crisis in Liskeard. That autumn a certain John Clement had been elected mayor, a choice with which some of the leading burgesses were not content. Colys, Richard Knoll, Robert Mey and John atte Wille with a following of other men made their way to the guildhall, forced their way in, and conducted a fresh election, choosing Richard Vage as mayor, and leaving the partisans of the ousted John Clement to seek redress in Chancery.
On chronological grounds, it is probable that Colys, who is first recorded holding local office in the reign of Henry IV, did not live for long after 1450. It seems unlikely that he was one of the two men of this name who attested the Cornish elections of 1467, although it is just possible that it was he who in November 1447 was fined 1d. for causing a public nuisance by depositing dung in the royal road in Liskeard.
