 1750), Fearnought (1755) (exported to the US), Alipes, Star, Cato, Juba, Ascha, Grisewood's Lady Thigh, Miss Belsea, and many important broodmares, including Spilletta (dam of Eclipse).Regulus also sired the second dam of Highflyer.His offspring’s successes led him to be the Leading sire in Great Britain & Ireland for eight years (1754–1757, 1761, 1763 and 1765–1766).