Mark Sykes (born circ. 1771, died 16th February 1823) was the son of Sir Christopher Sykes, Baronet, of Sledmere, Yorks. He succeeded his father in the baronetcy in 1801. Mr. Sykes was educated at Oxford, and in 1795 was High Sheriff of Yorkshire. He represented York in Parliament for several years. He assumed the additional name of Masterman in 1795, on the occasion of his marriage to Henrietta, daughter and heiress of Henry Masterman of Settrington, Yorks, but he left no heirs and was succeeded by his brother Tatton.

Sir Mark Sykes possessed a magnificent library, rich in classics and incunabula, and also a valuable collection of antiquities and pictures. His collections were sold at his death, and his books and other treasures are widely distributed.

TASH, THOMAS

Arms.—Per pale, or and gu., a chevron between 3 cinquefoils counterchanged, on a chief per pale of the second and first (2) escallops counterchanged. Tash.

Crest.—A greyhound courant or.

[Tymme. A silver watch-bell. Aberdene, 1627.]

[W. E. Axon, Esq. Deansgate. Manchester.]