English Civil War Vol. 4, The - Boldness and Courage Unto Them

During the day both sides gathered their full strength on Marston Moor, an expanse of wild meadow west of York. Towards evening, the Covenanters and Parliamentarians themselves launched a surprise attack. After a confused fight lasting two hours, Parliamentarian cavalry under Oliver Cromwell routed the Royalist cavalry from the field and, with Leven's infantry, annihilated the remaining Royalist infantry.

After their defeat the Royalists effectively abandoned Northern England, losing much of the manpower from the northern counties of England and also losing access to the European continent through the ports on the North Sea coast.