History of the Puritans under King Charles I that Independents were encouraged to join the New Model Army. Cromwell had thus created a situation where the Presbyterians dominated the Long Parliament, but the Independents dominated the New Model Army. At the Battle of Naseby on 16 June 1645, the New Model Army achieved a decisive victory over royalist forces. A number of subsequent battles were needed to finally defeat the royalist forces. In May 1646, Charles surrendered himself over to Scottish forces at Southwell, Nottinghamshire. So, to summarize the situation as we move into 1647: On the one hand, you have the leaders of the Long Parliament and
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.