Oliver Cromwell with Sir Thomas Fairfax in command and Cromwell as Lieutenant-General of cavalry and second-in-command. At the critical Battle of Naseby in June 1645, the New Model Army smashed the King's major army. Cromwell led his wing with great success at Naseby, again routing the Royalist cavalry. At the Battle of Langport on 10 July, Cromwell participated in the defeat of the last sizeable Royalist field army. Naseby and Langport effectively ended the King's hopes of victory, and the subsequent Parliamentarian campaigns involved taking the remaining fortified Royalist positions in the west of England. In October 1645, Cromwell besieged and took
Prince Rupert of the Rhine men, he also made many enemies at the Royal court. When he took Bristol, he also slighted the Marquess of Hertford, the lethargic but politically significant Royalist leader of the South-West. Most critically, Rupert fell out with George Digby, a favourite of both the King and the Queen. Digby was a classic courtier and Rupert fell to arguing with him repeatedly in meetings. The result was that towards the end of the war Rupert's position at court was increasingly undermined by his enemies. Rupert continued to impress militarily. By 1644, now the Duke of Cumberland and Earl of Holderness, he