Marlborough (GB) b c 1737 (Godolphin Arabian - Sachrissa, by Hartley's Blind Horse). Sire Line Godolphin Arabian. Family 15. Bred by the Earl of Godolphin, he was said to been a black colt of 1745, owned by the Duke of Marlborough, and to have won a sweepstakes at Newmarket in his only start [Pick 2:104]. This was later copied by the General Stud Book [GSB 1:98]. However this is contradicted by the Godolphin stud book in which he is recorded as a bay colt of 1737 [Royal Studs:171]. The black colt of 1745 was Lord Portmore's Oroonoko (bl c 1745 Crab). Marlborough was later owned by William Hearsy, then the Duke of Marlborough and in Ireland by Edward Sims & John Heney at Mullingar. He sired the second dam of Shark* (br c 1771 Marske) and Harpur's Herod (ch c 1781 King Herod).