The survivors of Naseby, which included the Northern Horse, withdrew to Raglan Castle in South Wales, but on 10 July the last significant Royalist field army in England was destroyed at the Battle of Langport. Langdale and other Yorkshire Royalists wanted to go north to link up with Montrose, who won a series of victories in Scotland from 1644 to 1645. Charles agreed but first insisted on relieving Chester, a port vital for communication with his Irish supporters; on 24 September the Royalists were defeated at the Battle of Rowton Heath.