St. Leger family of Lt. Col. (later Major-General) Anthony St. Leger, and ran for the first time over a two-mile course on Cantley Common in Doncaster. The classic race, The St. Leger, has been run at Doncaster ever since. Most St. Legers in the UK today descend from Sir Anthony St. Leger, KG of Ulcombe, Kent. The Viscounts Doneraile, whose seat was at Doneraile, Co. Cork, in Ireland, descend from Sir Anthony's first son, William, and the Heywards Hill branch of the family, also originally of Co. Cork, descend from his second son, Warham. (The account given in the "Peerage of Ireland" by
Thomas St. Leger has been suggested that Buckingham had the heiress in mind as a bride for his own eldest son Edward. This never came to pass, for both St. Leger and Buckingham ended up in rebellion against the new king. St Leger had been unshakably faithful to Edward IV and, like many of the other rebels of the rebellion of 1483, was undoubtedly distressed at Edward V having disappeared from sight after having been deprived of his crown. When the rebellion floundered, St. Leger continued the fight in Exeter, but was captured. He was executed on 13 November 1483, at Exeter Castle,