Active service and royal favour Cornwall formally entered the Lancastrian affinity on 12 March 1395 at
Saint-Seurin in
Bordeaux through an
indenture with
John of Gaunt. This was at a time of truce in the
Hundred Years' War, with Richard II's effective power confined to very small enclaves along the west coast of France. Cornwall was still an esquire and the indenture is unusual in giving him both wages and
bouche of court – a privilege reserved for knights. He promised to serve Gaunt
tant en temps de pees come de guerre al terme de sa vie – alike in times of peace and war to the end of his life. He was bound to turn out for war mounted and arrayed in a way suitied to his station in life. In return he was assigned an
annuity of 20 marks, drawn from the revenues of the manor of
Aldbourne in
Wiltshire. The payment would rise to £20 when he was knighted.
Simon Walker's study of the Lancastrian affinity lists Cornwall as plain John, beneath
Sir John Cornwall, also a long-serving member of Gaunt's retinue who received the £20 appropriate to a knight. Cornwall of Kinlet is recorded as receiving his 20 marks up to 1399. On 9 June 1397 John Cornewale, knight, was listed as one of those granted royal protection for the expedition to Ireland, commanded by
Roger Mortimer, 4th Earl of March, the king's Lieutenant. Mortimer was overlord at Kinlet and Ashton, and medieval records are fairly imprecise about knightly status, which makes it quite probable this Cornwall was the subject of this article. However, there is a strong possibility that it was actually his namesake, who later became
Baron Fanhope. As an established part of the Lancastrian affinity, Cornwall benefited from the overthrow of Richard II in 1399 and was in immediately in favour with
Henry IV. He was knighted and was made
Sheriff of Shropshire on the first day of the new reign. His annuity was also confirmed. However, his good standing with the new régime was soon threatened by allegations of criminality.
Withiford rustling case Cornwall was accused of cattle rustling at Wytheford (also rendered Withiford) in Shropshire in April 1401. Cornwall claimed, through his attorney, that he had been acting on behalf of John de Knyghteley. In support of this he offered a long and complex supporting narrative, starting with the death of Thomas de Charlton, who had held the estate until 1388, and whose heirs were minors. The king had sold their marriages and the custody of their estates to speculators, who in turn sold them to Knyghteley. However, the custody had itself now descended to a minor, and Cornwall claimed to be acting in his interests to reclaim arrears. The case affected the king's interests, as the plaintiffs, who were demanding £100, alleged that their cattle had already been taken into the custody of the county escheator when Cornwall removed them. By the time the case came up for trial in 1402,
John Darras was Sheriff of Shropshire. Darras could be relied upon to assist Cornwall as he was both a personal friend and had been married to Joan Corbet, his first cousin. In April 1402 he was one of four local gentry who made
mainprise (essentially similar to
bail) at Westminster for Cornwall that he would keep the peace, creating a conflict of interest. The case was moved to the Shrewsbury assizes by a writ of
nisi prius and there the plaintiffs claimed that Darras had allowed Cornwall to nominate the panel of jurors.
The Welsh rebellion The
Glyndŵr Rising now loomed large in Cornwall's career. In September 1403 he was ordered by the king to garrison and to hold
Manorbier Castle. Presumably he did this efficiently as he was next given a major organisational task. Instructions given to Cornwall,
John Burley and Thomas Young, at the Parliament of 1404, which took place in
Coventry, but they were embodied in a formal commission on 24 March 1405. They were to supervise the musters of troops in Shropshire and
Cheshire and to report back on numbers, as
Prince Henry had been appointed the king's lieutenant in North Wales and needed 500
men-at-arms and up to 3000
archers for a punitive expedition. Both of Cornwall's collaborators, Burley and Young were key members of the Arundel affinity. The FitzAlan earls of Arundel were the richest and most important landowners in Shropshire, and had long been so. Richard II had executed
Richard FitzAlan, 11th Earl of Arundel, one of the
Lords Appellant, in 1397. His brother, Archbishop
Thomas Arundel, and his dispossessed son,
Thomas FitzAlan, 12th Earl of Arundel, were supporters of Henry IV in his bid for power. The restored young earl dominated the politics and parliamentary representation of Shropshire through his extensive network of retainers, which included soldiers, landowners, lawyers and clerics. Cornwall's friend John Darras was a member of the Arundel affinity, valued by the earl and the king for his service in Wales. On the same day Cornwall, Arundel and Burley were issued a commission of
oyer and terminer to hunt down people in Shropshire who were secretly supplying the rebels. In January 1406 Prince Henry was commissioned to extend his operations to South Wales, while Cornwall, Burley and Haldenby were commissioned to raise further troops in the Welsh Marches. In June of that year, perhaps in connection with the campaigns and investigations, the king issued a pardon to one of Cornwall's servants from Worcestershire.
Member of Parliament, 1407 Cornwall was
knight of the shire for Shropshire again in 1407, returned alongside
David Holbache, a man of Welsh origins, a close aide and lawyer to Arundel.
Keeper of Morfe and Shirlett Cornwall's friend, John Darras hanged himself at his own manor of
Neenton in 1408, the first notice of the suicide being a commission from the king, issued on 30 March, to four Shropshire gentry to investigate possible concealment of the deceased's goods. Darras had been keeper of
Morfe and Shirlett, areas of
Royal forest on either side of the
Severn in Shropshire, a post his he held in recognition of his military service in the Welsh campaigns. Soon after his suicide, on 2 April, the king conferred the office on Cornwall, described as a "king's knight." The grant made clear the value of the appointment, "with all wages, fees, profits and commodities as John Darras, deceased, had while he lived." This was a rectification of previous confusion, as the keepership seems to have been promised to one Nicholas Gerard. Cornwall seems to have been a trusted man at this point, as on 5 April he and Burley were among those commissioned to investigate a murder in Shropshire. Such judicial tasks continued, with Cornwall delivering writs and making arrests for the king. However, Cornwall proved himself overbearing and vexatious in office. In March 1410 the king ordered Arundel and his legal team, John Burley, David Holbache and Thomas Young, with the addition of
Lord Furnival, one of Arundel's rivals, to investigate breaches of customary manorial and grazing rights at
Worfield in Morff Forest, made by Arundel's brother-in-law,
William de Beauchamp, 1st Baron Bergavenny. Beauchamp's complaint did not cite Cornwall by name but mentioned only "certain evildoers." He alleged he had been hindered in his
view of frankpledge and in holding his biannual
court leet and that both he and his tenants were not able freely to enjoy their customary
common pasture, both within and without the
royal forest. It was reckless of Cornwall to challenge a man so powerful on his own account and so closely connected to Arundel. However, there had been similar complaints from William Ferrers, 5th
Baron Ferrers of Groby. Clearly Cornwall was not deterred by aristocratic and royal concern, as Joan Beauchamp, Arundel's sister made an almost identical complain about Cornwall in late 1411 or early 1412, after she was widowed, and the same team was once again commissioned to investigate. The following year the king received a complaint from John Marshall, Dean of his
royal free chapel at Bridgnorth, this time naming Cornwall clearly as the culprit. Marshall alleged that he and the king's tenants at
Claverley were being forced to pay an annual fine to access their time-honoured common grazing for sheep, pigs and other animals. Even before sending in Arundel's lawyers to investigate, the king secured Cornwall's resignation and on 13 February 1413 installed Roger Willey, Darras's old business partner, as keeper of Morfe and Shirlett in his place.
Murder charge and death In April 1413 a group of Midlands gentry, led by William Lichfield, Cornwall's son-in-law, made mainprise of £100 for him at Westminster and he undertook, under a pain of £500, to do no harm to anyone. This was a prelude to a case tried at
Court of King's Bench at Shrewsbury in
Trinity term. Henry V was present in person, along with
William Hankford, the
Chief Justice of the King's Bench, in response to complaints about the prevalence of bad governance and murder in Shropshire made at the
Fire and Faggot Parliament in Leicester, earlier that year. Henry seems to have had a reputation for violence, as he was also accused of a serious assault on a cleric in 1412. The murder had taken place in August 1413 at Sir John Cornwall's own manorial court in Kinlet, emphasising the likelihood of his complicity. Before the case against him could proceed further, Cornwall died on the Thursday after the
Feast of Saints Peter and Paul, ==Family==