Allen Apsley (Royalist) but presumably Apsley's was at Newbury due to its good strength compared to the other regiments in the tercio. On 29 May 1645, Apsley's and the rest of Astley's tercio made up the right flank at the storming of Leicester, which fell the next day in a bloody massacre to the royalist cry of "Kill Dead!" It is presumed by this point that Apsley's horse had either gone back to Exeter with Allen or been amalgamated into one of the other horse regiments as no further records of them exist. By the Battle of Naseby on 14 June 1645, what
Prince Rupert of the Rhine led the relief of Newark and York and its castle. Having marched north, taking Bolton and Liverpool along the way in two bloody assaults, Rupert then intervened in Yorkshire in two highly effective manoeuvres, in the first outwitting the enemy forces at Newark with speed; in the second, striking across country and approaching York from the north. Rupert then commanded much of the royalist army at its defeat at Marston Moor, with much of the blame falling on the poor working relationship between Rupert and the Marquess of Newcastle, and orders from the King that wrongly conveyed a desperate need