Marston Moor (Civil War).
Fought July 2, 1644, between 18,000 Royalists, under Prince Rupert, and 27,000 Parliamentarians, under Manchester, Leven and Fairfax. For the first time in the war, Rupert's cavalry was repulsed by Cromwell's Ironsides, and though the right wing under Fairfax was broken, the left and centre were victorious, and the Royalists were totally defeated, with a loss of 4,000. This victory gave the Parliament complete control of the north.