| Constituency | Dates |
|---|---|
| Richmond | 1727 – 14 Mar. 1728 |
Postmaster gen. [I] 1736 – d.
Constable Burton, so-called because its former owners had been constables of Richmond castle, was acquired through marriage by the Wyvills in the reign of Edward VI.1C. Clarkson, Richmond, 68. In 1713 and 1715 Wyvill stood unsuccessfully for Richmond against the Yorke and Darcy interests. In 1722 his father forbade him to stand, on learning that his doing so would be disapproved by Lord Sunderland.2Sir Marmaduke Wyvill, 5th Bt., to Sunderland, 9 Mar. 1722, Sunderland (Blenheim) mss. In 1727 he was successful but was unseated on petition. In 1736 his brother-in-law, Thomas Coke, later Lord Leicester, the English postmaster general, appointed him postmaster general of Ireland, which disqualified him from sitting in the House of Commons. He is described as ‘a great man for sheep in Yorkshire’.3HMC Egmont Diary, ii. 247-8, 408.
He died 27 Dec. 1754.
