Wilbraham’s ancestors were resident in Cheshire from at least the thirteenth century. The Nantwich branch of the family, established by the late 1400s, first achieved prominence through Wilbraham’s uncle Thomas†, a distinguished lawyer who became recorder of London and attorney of the Court of Wards.
Only two years after being called to the bar, Wilbraham became Ireland’s solicitor general. As he later admitted, he hoped that conspicuous service in Ireland would lead to preferment in England, and he pursued his new duties vigorously, particularly with regard to improving the Crown’s finances and implementing the plantation of Munster. By 1593 he could claim that he had helped to increase revenues by between £4,000 and £5,000, despite sustained local opposition, and his ‘painfulness and good endeavour in the advancement of such matters’ won him the government’s lasting esteem.
Despite the material benefits gained from service in Ireland, Wilbraham persisted in his pursuit of English office. Although his requests for revocation in 1591 and 1595 were rejected, the government allowed him increasing amounts of time in England to pursue both official business and his own affairs, and the first entry in his journal was a description of the 1593 Parliament. This enabled him to maintain his ties with Gray’s Inn, which made him a bencher in 1595.
In 1604 Wilbraham was elected to Parliament for Callington, almost certainly on the nomination of his patron Robert, now Lord Cecil, whose kinsman Sir Jonathan Trelawny enjoyed influence over the borough.
In the aftermath of the Gunpowder Plot, Wilbraham was responsible for examining some of the lesser witnesses.
Wilbraham’s contribution to the 1606-7 session was even more limited, which is surprising because he enthusiastically favoured the Union, the principal subject under discussion. His reticence during the Union debates may partly have stemmed from his naïve belief that the necessary changes could be implemented by exercise of the royal prerogative, and his failure to grasp why the king chose to act instead through Parliament. His only known contribution occurred when he was accused by William Barwick on 3 Dec. 1606 of suppressing a petition to the king about livestock confiscated from English merchants in Scotland. Hastily reassuring the Commons that James was aware of the problem, he confirmed on 8 Dec. that compensation would be forthcoming, and Barwick duly received a Privy Seal two days later.
Outside Parliament, Wilbraham was still frequently consulted on Irish affairs, and played a leading role in the establishment of the Ulster plantation, although in 1606 he found himself in trouble over his failure to build a castle on his property in Co. Monaghan.
Salisbury’s death in 1612 deprived Wilbraham of his principal patron, and he failed in his bid to succeed Sir George Carew II* as master of the Wards in November of that year.
In September 1614 Wilbraham was reportedly in the running to become chancellor of the duchy of Lancaster, but he was passed over in favour of (Sir) John Dackombe*. As late as January 1616 he was still being consulted about Irish administration, and in May of that year he helped to preside over the trial of the earl and countess of Somerset.
