Colas was probably the son of Henry Colas of Guildford, a wealthy inn-keeper, who sat for the borough in the Parliament of 1377 (Jan.) at the end of a long and active career. Colas senior’s interests also extended to trade, for besides playing an important part in the affairs of the local guild merchant, he had farmed the cloth subsidy in Kent for over 12 years.
Although he is known to have lived in Guildford until 1413, if not later, Colas does not seem to have become involved in the business of local government. In June 1395 he witnessed a quitclaim of land in and around the borough made by John Cross; and at Michaelmas 1396 he began making regular biannual payments of 10s. each as a fine at the Exchequer. These continued for the next 17 years and may perhaps have been incurred as a result of his concealment of crown property during the 1380s. A fine of this size would only have been imposed for some particularly serious offence, but there is no evidence of any ill-considered political activities or other misdemeanors on his part.
