MOSTYN, Thomas (1704-58), of Mostyn, Flints.

Published in The History of Parliament: the House of Commons 1715-1754, ed. R. Sedgwick, 1970
Available from Boydell and Brewer



1734 - 1741
1747 - 24 Mar. 1758

Family and Education

b. 26 Apr. 1704, 1st s. of Sir Roger Mostyn, 3rd Bt. and bro. of John and Savage Mostyn. educ. Westminster 1716; Ch. Ch. Oxf. 1720. m. c.1733, Sarah, da. and coh. of Robert Western of London, 4s. 5da. suc. fa. as 4th Bt. 8 May 1739.

Offices Held


Mostyn, a Hanoverian Tory, forced a Jacobite sheriff of Flintshire to proclaim George II.1 Though more interested in literature than in politics, he took a leading part in the Tory preparations for the Flintshire elections in 17342 when he succeeded his father as knight of the shire, consistently voting against the Administration. In 1741 he stood down by agreement, declining pressing invitations to stand for Flint Boroughs in view of the heavy cost of the previous election there, towards which he had contributed over £2,000. Resuming the county seat in 1747, he continued to sit for it unopposed as a Tory till his death, 24 Mar. 1758.

Ref Volumes: 1715-1754

Author: Peter D.G. Thomas


  • 1. Cheshire Sheaf (n.s.), i. 18-19.
  • 2. Add. 32688, f. 332.