Thomas came from a family which had migrated to Southampton from Cornwall in the closing years of the fourteenth century, and was a nephew or grandson of the Thomas Chamberlain alias Lorimer, who had been the first member of the family to acquire property in the town.
In April 1440 the pension previously awarded to Thomas’s father alone was granted to him, too, the two men henceforth receiving 6d. a day from the customs of Southampton for term of their lives, in survivorship. It looks as if Thomas had already entered royal service. Initially he was attached to the King’s secretary, Master Thomas Bekynton, as his ‘servant’, and together with Bekynton in July 1441 he received from the King a grant of a tenement and certain lands together with a moiety of a stretch of water called ‘Lambourn’ (presumably the river itself) in the royal lordship of Speen in Berkshire, for which they were to pay 7s. 6d. a year.
Parliament assembled at Westminster from 25 Jan. to 27 Mar. 1442. Chamberlain was in attendance on Bekynton when the latter left Windsor on 5 June, at the start of his journey to Bordeaux for negotiations with the count of Armagnac regarding the King’s marriage, and ten days later, after they had spent the night at Taunton, he was sent to Enmore to meet Edward Hull*, the secretary’s fellow envoy, before rejoining Bekynton on the 23rd at the earl of Devon’s castle at Tiverton. On the secretary’s return to England in January 1443 Chamberlain met him at Bedwyn in Wiltshire bearing a letter from the King.
Later in 1443 Chamberlain began to receive fees and robes in the Household as a groom of the chamber, and at Michaelmas 1444 he was promoted to the rank of ‘valet’ or yeoman, which he held for some 13 years.
As a yeoman of the chamber Chamberlain was expected on occasion to act as the King’s messenger, and in March 1447 he was given a reward of £10 for excessive labour and charges in riding by day and night over a period of five weeks at Henry’s command, on a journey which cost ‘greet money’ for the hire of horses and guides. Perhaps this was related to the business of the Parliament at Bury St. Edmunds. He was promised ten marks for going on a similar errand in May 1450, when Parliament was assembled at Leicester.
The fact that Chamberlain was a member of the Household with personal access to the King had no doubt been a significant factor in his return to Parliament for Southampton in 1453, for this Parliament contained an unusually large number of royal servants. Yet the choice was not imposed on the burgesses, for he did not lack for influential contacts among them. His father had long been a close friend of William Soper*, the prominent merchant and current keeper of the King’s ships, and Thomas continued the association, especially after Soper took as his second wife our MP’s kinswoman (perhaps sister) Joan Chamberlain. He is known to have ridden on one occasion from London to Somerset on Soper’s business, and in 1454 he became the sole feoffee of his friend’s property in Eling, Dibden and Fawley, which he reconveyed a year later to Soper and his wife for term of their lives, undertaking that after their deaths he would pay the mayor of Southampton £2 a year from the income of the property to ensure that their obits would be kept in perpetuity. Soper made him an executor of his will dated 8 Nov. 1458, and he and the testator’s widow took on joint administration of it.
Little is recorded about Chamberlain after the accession of Edward IV. His service in Henry VI’s household clearly marked him out as a potential rebel, and he was arrested at Southampton in the summer of 1466 on charges of treasonous behaviour.
The date of Chamberlain’s death is not known. According to a petition sent to the archbishop of York as chancellor (perhaps in 1470-1), Chamberlain had put his manor of Watchingwell and lands in the parishes of Shalfleet and Calbourne on the Isle of Wight in the hands of feoffees to the use of himself and his heirs, and in his will ‘by writyng of his owne hande’ declared that after his death these properties were to be sold and the money raised (up to 100 marks) spent on the salary of a priest to sing masses for the souls of himself and his friends for ten years. He left no surviving children, and after his death John Wallop† and Joan his wife (said to be Chamberlain’s kinswoman) asserted that they had been promised this property for payment of 120 marks. Among Chamberlain’s executors, headed by his widow, was Walter Fletcher,
