The siege ended four days later when the Parliamentarian soldiers stormed the castle, taking prisoner the Royalist governor, Sir Francis Fane, and what remained of his garrison.

[1] In April, a combined Parliamentarian-Scottish Covenanter force began the Siege of York, threatening the Royalist position in the north.In response, Charles I of England ordered his nephew Prince Rupert to relieve Newark and collect all the troops he could in Shropshire, Cheshire, and Wales.

[2] Command of the Parliamentarian forces investing Newark passed to veteran Scottish soldier Sir John Meldrum, who chose to oppose Rupert rather than retreat.

[1] However, Rupert decided that he could not hold his gains, and withdrew into the West Midlands, leaving a garrison in Lincoln under Sir Francis Fane.

He made his dispositions so well that, hearing on 5 May that Goring had crossed the Trent, Cromwell's troopers were assembled and drawn up in little over an hour from the news being received.

[2] A contemporary Royalist report states that that night the Parliamentarians attempted to storm Lincoln Close but were repulsed with about 60 killed.

Goring appears to have had at least as many troopers as Cromwell, but the latter drove him up the Trent towards Newark, and headed him off at Mascomb Bridge, forcing him to swim the river in order to escape.

[2] Cromwell then returned to Bawtry and Tuxford (both on the Great North Road), where David Leslie joined him with a strong party of Scottish horse and placed himself under his command.

Manchester, Fairfax and the Scots ultimately won a major victory over Rupert at the Battle of Marston Moor on 2 July.