Thomas Mostyn

Sir Thomas Mostyn, 4th Baronet(26 Apr. 1704 –1758), of Mostyn, Flintshire, was a British landowner and Tory politician who sat in the House of Commons between 1734 and 1758.

Mostyn was the eldest son of Sir Roger Mostyn, 3rd Baronet, of Mostyn and Leighton, and hiswife Essex Finch daughter of Daniel Finch, 2nd Earl of Nottingham.He was educated atWestminster School in 1716 andmatriculated at Christ Church, Oxford on 13 October 1720, aged 16.He travelled extensively in Europe fromOctober 1723 until May 1728. His main interest was literature and he collected books and manuscripts.He married Sarah Western, daughter. of Robert Western of St Peters Cornhill, London and Rivenhall Essex in about 1733.

Mostyn was a Hanoverian Tory, and in 1727 forced the Jacobite sheriff of Flintshire to proclaim George II.He took a leading part in local Tory preparations for the1734 British general electionand was returned as Member of Parliament for Flintshire in succession to his father. He votedconsistentlyagainst the Administration. He succeeded his father to the baronetcy on8 May 1739. At the 1741 British general election he stood down by agreement, and declined ithe invitation to stand for Flint Boroughsafter the heavy cost of the previous election there, which had cost him over £2,000. At the 1747 British general election, he was returned for FlintshireHe was returned unopposed again for Flintshire at the1754 British general election.

Mostyn died on 24 March 1758 leaving four sons and five daughters. His wife Sarah survived to 1783. He was succeeded in the baronetcy by his son Roger.His daughterAnne, became the second wife of Thomas Pennant, the naturalist and traveller in 1777.