The siege of Colchester, 1648, began when George Goring Earl of Norwich was driven into the town after he and Sir William Waller had unsuccessfully attempted to stage a Royalist rebellion in Kent and Essex. The Parliamentary commander, Lord Fairfax, invested the town on 14 June, and the Royalists surrendered on 22 August.

This anonymous broadsheet features a generalised map of the town at the height of the siege. The burning of Sir Harbottle Grimstone’s house (marked Grimstead’s house) and of the house of the mayor, Mr Barrington, took place on 29 June.

The author was with the Parliamentary forces, as he shows in his opening remarks that 'the word of the King's forces at ye fight was Charles, the ground they fought upon, Maries: ours, God's – our help'.