A representative of a long-established junior branch of the Corbets of Moreton Corbet, Thomas had a long career as one of the workhorses of local government in Shropshire.
The death of Corbet’s father in the summer of 1420 further augmented the couple’s holdings. Unfortunately no inquisition post mortem survives in respect of his Shropshire lands, but they appear to have included, aside from the family’s original endowment, the manor of Leigh near Caus, another manor, in the south of the county, at Sibdon Carwood. In addition the family patrimony also consisted of a modest outlying estate, namely eight messuages and four virgates in Arley in Warwickshire, and the manor of Sibson in Leicestershire, all of which were then in the hands of feoffees, headed by Thomas Young† of Sibdon Carwood (enfeoffed as long before as 1402).
By far the most interesting documented episode in Corbet’s career occurred shortly before his father’s death. At Shrewsbury on 26 Jan. 1420, if several indictments and an appeal are to be accepted at face value, one Thomas Sporyer was murdered by Hugh Burley of Broncroft, a near kinsman of William Burley I*, and Philip Bent, a yeoman of More near Bishop’s Castle. When indictments were taken in the following September, both before the local j.p.s. and before the steward and marshal of the Household (sitting as the court of the verge as the royal household was then in the town), several local gentry were named as accessories to the homicide, among whom were our MP and his cousin, Roger Corbet I*. There is no evidence to give the crime a firm context, but, tantalizingly, Bent was also indicted in the court of the verge for conspiring, a month after Sporyer’s murder, with Meduth ap Owen, Owen Glendower’s son, to levy war against the King in Shropshire. This raises the possibility that those implicated with him in the murder were also involved in this conspiracy among the dying embers of the Welsh rebellion, although it is perhaps more likely that the indicting jury were simply seeking to blacken further Bent’s name. However this may be, our MP must have been anxious to clear his name. In Easter term 1421 he troubled to travel to Northampton, where the court of King’s bench was in eyre, to answer an appeal sued by the alleged victim’s widow. On 11 Nov. 1422 he pleaded not guilty to the King’s suit as an accessory to Sporyer’s murder and, pending the verdict in the appeal, was dismissed to the bail of William Lawley* and three lawyers. The widow then abandoned her appeal and, on 30 July 1423, he was acquitted before the justices of assize.
No sooner, however, had Corbet purged himself of these legal difficulties than he was allegedly involved in events that gave rise to new ones. At midnight on 19 Sept. 1423, according to the appeal of another widow, her husband Thomas Balle was murdered at Condover, a few miles south of Shrewsbury, by Laurence Aspeden, acting as an agent of Corbet, William Horde*, Hugh Stapleton and other lesser men. Four days later Corbet was elected to represent the county in Parliament at hustings attended by both Horde and Stapleton, and it is tempting to suppose that he wanted to go to Westminster at the county’s expense to deal with the consequences of his alleged involvement in the murder. Interestingly, when the next Parliament, that of 1425, was in session, the two Shrewsbury MPs, Roger Corbet I and John Gamell*, offered surety that Corbet and others accused would answer the appeal (on which they were acquitted in March 1427).
In view of his long career and intense involvement in local administration, it is surprising that this should be Corbet’s only recorded election, further evidence, perhaps, that he had a particular motive for standing. Despite this dramatic start to his career, it is impossible to construct a meaningful narrative of his career from the mid 1420s that is anything more than a list of administrative offices held. Nor is it possible to suggest why he should have been so active in this regard. Of his energy there can be no doubt. Between 1426 and 1444 he served as many as three terms as sheriff, and, in November 1448, he narrowly avoided a fourth appointment, for he was on the pricked list with (Sir) John Burgh III* and John Wynnesbury*.
There are few references to Corbet’s connexions: in 1441 he returned an award at Shrewsbury in a dispute within the local gentry family of Stapleton; in August 1446 he witnessed a deed for the Shropshire peer, Richard, Lord Strange of Knockin; and a year later he was, for some unknown reason, at Shrewsbury with Burgh’s wife.
There is no evidence to illuminate Corbet’s political sympathies during the civil war of 1459-61. He was named to the Lancastrian commission of array in December 1459 and removed from the Shropshire bench, after nearly 30 years continuous service, in the wake of the Yorkist victory at the battle of Northampton. He may also have had a connexion with Humphrey Stafford, duke of Buckingham, who fell on the Lancastrian side at that battle: on 17 July, a week after the battle, he witnessed a deed by which John Harper*, as the duke’s last surviving feoffee, conveyed the Stafford lordship of Caus to new feoffees.
None the less, advancing age – Corbet was nearly 70 on Edward IV’s accession – ensured that his administrative activities diminished under the new regime. Although he retained his place on the county bench until 1474, he was named on only one further ad hoc commission of local government after 1463.
There are only a handful references to him in the late 1460s and 1470s. In 1465, in company with his kinsman, (Sir) Roger Corbet II, his son-in-law, William Mytton*, and many other gentry of Shropshire and Staffordshire, he was sued by Margaret Beauchamp, widow of John Talbot (d.1453), earl of Shrewsbury, for raiding her property at Whitchurch and Blackmere (Shropshire). This was presumably an episode in the famous dispute within the Talbot family, with the alleged raiders acting in support of Elizabeth, widow of Margaret’s stepson, the earl of Shrewsbury who had died for Lancaster at the battle of Northampton. If so, however, this is the only evidence of our MP’s connexion with Elizabeth.
