There have been two baronetcies created for different branches of the Throckmorton family, 6th cousins, both descended from Sir John Throckmorton, Under-Treasurer of England temp. King Henry VI (1422–1461). Both titles, which were in the Baronetage of England, are now extinct. The Throckmortons, originally of Throckmorton near Pershore, Worcestershire, trace their history back to the 12th century. In 1409 Sir John de Throckmorton, Under-Treasurer of England, married Eleanor Spinney, daughter and heiress of Guy Spinney of Coughton, Warwickshire, where the senior branch of the family, which bore the junior baronetcy, became established. The Coughton estate included in 1968 a dower house named "Spiney House, Coughton", named after that family. The senior Throckmorton Baronetcy, of Tortworth in the County of Gloucester, was created in the Baronetage of England on 29 June 1611 for William Throckmorton, of Coss Court, Tortworth, Gloucestershire, sixth in descent from John Throckmorton, younger son of Sir John Throckmorton, Under-Treasurer of England. The third Baronet sat as Member of Parliament for Gloucestershire and Wotton Basset. The title became extinct on the death of the fourth Baronet in a duel in 1682.