TREVELYAN, Sir John, 4th Bt. (1735-1828), of Nettlecombe, Som. and Wallington, Northumb.

b. 6 Feb. 1735, 1st s. of Sir George Trevelyan, 3rd Bt. by Julia, da. of Sir Walter Calverley, 1st Bt., sis. and h. of Sir Walter (Calverley) Blackett, 2nd Bt. educ. New Coll. Oxf. 1753. m. 20 Apr. 1757, Louisa Marianne, da. and coh. of Peter Simond, a Huguenot London merchant, 4s. 2da. suc. fa. 11 Sept. 1768, and to estates of his uncle, Sir Walter Blackett, 14 Feb. 1777.