 He also was frequently used in the 80-mile gallops from Valladolid to Burgos, which he often completed in five hours.As one of 52 horses in Napoleon's personal stud, Marengo fled with these horses when it was raided by Russians in 1812, surviving the retreat from Moscow; however, the stallion was captured in 1815 at the Battle of Waterloo by William Petre, 11th Baron Petre.Petre brought the horse back to the United Kingdom and sold him on to Lieutenant-Colonel Angerstein of the Grenadier Guards.