This Member cannot be definitively identified, but he was probably the cousin of Katherine Cornwallis, the widow of Thomas Cornwallis, groom-porter under Elizabeth, and daughter of Thomas Wriothesley†, 1st earl of Southampton. Katherine lived at East Horsley in Surrey, near the home of Anne, dowager countess of Arundel, and she and her husband were closely connected with Anthony Browne, 1st Viscount Montagu, whose second wife, Magdalen, was Anne’s aunt. Consequently, Katherine was presumably able to recommend her kinsman to the countess’ son, Thomas Howard, earl of Arundel, lord of the manor at Horsham.
Cornwallis’ father, also called Thomas, was the nephew of Sir Thomas Cornwallis† of Brome Hall, Suffolk, Mary Tudor’s comptroller of the Household. He deputized for Katherine’s husband for many years as groom-porter before succeeding to the post himself when the latter died without surviving children in 1597.
One of Sir Thomas’ sons was converted by Jesuits while travelling in Spain in 1607, and was apparently employed as a page in the archdukes’ court at Brussels in 1610. However, this was probably Cornwallis’ brother William, who was recorded as resident in Brussels in 1614.
Granted the reversion of the groom-portership in 1605, Cornwallis may have fulfilled the duties of that post in the household of Prince Henry, but it was Henry Cornwallis, a short-lived son of Sir William*, who seems to have succeeded to the office on the death of Sir Thomas in 1618.
Cornwallis’ marriage the following year to the widow of William Watson brought him control of the large fortune accumulated by his infant stepson’s grandfather, Rowland Watson†.
Cornwallis was returned for Horsham to the third Jacobean Parliament but left no trace on its records. He subsequently became a recusant, which probably explains why he does not appear to have sought re-election. On Lady Katherine’s death in 1626 he inherited a 20-year-lease of Monkton Farleigh moor, near Bath, and was presumably therefore the convicted recusant of Westminster granted leave to travel to Bath in October 1626.
