Battle of Naseby Confederation through the Cessation Treaty, and Catholic nations in Europe. By publishing this correspondence, entitled "The King's Cabinet Opened", Parliament gained much support in favour of fighting the war to a finish. Within a year, the first civil war ended in a Parliamentarian military victory. Battle of Naseby The Battle of Naseby was a decisive engagement of the English Civil War, fought on 14 June 1645 between the main Royalist army of King Charles I and the Parliamentarian New Model Army, commanded by Sir Thomas Fairfax and Oliver Cromwell. It was fought near the village of Naseby in Northamptonshire. After
William Eyre (leveller) New-England because he opposed the Service Book. In 1642 Eyre was a sergeant in Denzil Holles's regiment, and fought at Battle of Edgehill. Just over three weeks later he was with the regiment when it was destroyed by a detachment of the Royalist army under the command of Prince Rupert at Battle of Brentford. Eyre joined the Eastern Association and was commissioned by Oliver Cromwell a quartermaster in his own troop. Shortly afterwards he was promoted to captain of the sixth troop in Cromwell's regiment of horse (the famous Ironside). He fought under Cromwell in the Lincolnshire campaign of 1643.