A career soldier, Lord William Thynne was brought in for his father’s borough of Weobley in 1826 in place of his brother Henry, then absent on naval service. No speeches by him were reported, and although he could be relied on to support the duke of Wellington’s ministry his attendance was spasmodic. He received a week’s leave after serving on the Dublin election committee, 3 May 1827. He voted against investigating chancery delays, 24 Apr., Catholic relief, 12 May, and ordnance reductions, 4 July 1828; and as their patronage secretary Planta predicted, he voted ‘with government’ for Catholic emancipation, 6, 30 Mar. 1829. He was given three weeks’ leave on urgent private business, 8 Mar. 1830, but may have been the ‘Lord Thynne’ who divided against Jewish emancipation, 5 Apr., although it was probably his uncle Lord John Thynne. He was returned in absentia at the general election in August and promoted to major later that month. The ministry listed him among their ‘friends’ and, unlike his relations, he divided with them on the civil list, 15 Nov. 1830, when they were brought down. He did not vote on the Grey ministry’s reform bill, which proposed Weobley’s disfranchisement, and made way for his younger brother Edward at the dissolution in April 1831.
Thynne, who was based mainly in Gosport while on active service, tried hard to secure a reconciliation between Edward and his estranged first wife.
