Born into a well established and prominent landed family, Thomas was the eldest son of John Tyrell, a distinguished servant of the Lancastrian Crown who sat in no fewer than 13 Parliaments (three of them as Speaker) and was knighted in 1431. John served Henry VI as a councillor, as an officer of the duchy of Lancaster and as treasurer of the Household, and he was closely linked with Humphrey, duke of Gloucester, and other important magnates. By the end of his life John, who died on 2 Apr. 1437, was the wealthiest non-baronial landholder resident in Essex; his lands, excluding properties worth £40 p.a. which he had already settled on Thomas, were worth at least £396 p.a. Some of his estates descended to two of his younger sons (William I succeeded to properties in Norfolk and Suffolk and William II to others in Essex), but Thomas’s landed inheritance was still an extremely substantial one.
It is possible that these estates were augmented by lands his wife, Anne, had brought to their marriage, a match arranged between his father and the executors of her father, Sir William Marney.
Among those whom Tyrell is likely to have entertained at East Horndon are his wife’s family, the Marneys. He was a Marney feoffee and he likewise acted as such, and as a witness and surety, for other landowners, including relatives like William Skrene, who had married his sister Alice, and Thomas Cornwallis*, the son-in-law of his uncle Edward Tyrell.
Like his father, Tyrell was one of Cromwell’s feoffees and he was present when the peer came before the King and his Council, to refute allegations that he was guilty of treason, in February 1453.
It is possible that Tyrell spent some of his early career campaigning in France,
No doubt Tyrell’s status as a royal esquire helped him to win election to the Parliament of 1442, although once this Parliament opened the Commons expressed disquiet about the growing costs of running the Household and asked the King to appoint a committee of lords to ensure it was properly managed.
In the spring of 1450, during the final session of the next Parliament, the Commons nominated Tyrell to act as one of the receivers and treasurers of a new graduated estate tax. The purpose of the tax, which he helped to assess in Essex and London, was to raise money to pay those captains and men defending the realm. The murder of the keeper of the privy seal, Adam Moleyns, bishop of Chichester, lynched at Portsmouth on 9 Jan. 1450 by a mob of unpaid seamen, had already served as a warning of the dangers posed by discontented soldiers and sailors. Shortly after Moleyns’ death, the King granted the temporalities of Chichester to Tyrell and Reynold Pecock, bishop of St. Asaph, to hold at a farm of 700 marks p.a. for as long as the see should remain vacant.
Such raids served to highlight the military disasters suffered by the English in France; failures which had helped ensure the downfall of the King’s chief minister, William de la Pole, duke of Suffolk, two years earlier. Tyrell is not known to have had any more than a passing association with the duke, whom his patron Ralph, Lord Cromwell, had come to oppose.
Later that year, some weeks after the King’s mental collapse had precipitated a constitutional crisis, the government decided to summon a great council. At first it intended to exclude Richard, duke of York, the leader of the opposition to the Court, from this assembly, but on 23 Oct. a group of peers decided, in the absence of York’s chief opponent, the duke of Somerset, to summon him to attend. They chose Tyrell to act as their messenger, and he probably found York at Fotheringhay, his castle in Northamptonshire.
Tyrell stayed loyal to the Lancastrian Crown in the later 1450s, continuing to serve it as a j.p. and ad hoc commissioner. In November 1459 he was returned to his last Parliament, a partisan assembly packed with Household men and other supporters of the Court which attainted York and his allies. A day after his election he was appointed to his third and last term as sheriff, and in May 1460 he and Thomas Thorpe acquired a new grant of the manor and lordship of Havering atte Bower, to farm for 20 years at £102 p.a.
When York’s son seized the throne in March 1461 Tyrell was dropped from the bench, although in the following May he obtained another 20-year farm of Havering atte Bower from the new King, this time in association with the Londoner Thomas Cook II*.
Tyrell outlived his eldest son, so his heir was his grandson, Sir William’s son Thomas. In January 1475 Thomas, who joined Edward IV’s household, was married to Anne, a daughter of Walter Devereux II*, Lord Ferrers of Chartley. In the negotiations for the marriage the MP agreed to settle his manors of Meldreth and Malton in Cambridgeshire and Avon and Milton in Hampshire on the couple, while for his part Devereux undertook to provide Anne a portion of 400 marks.
