Kett's Rebellion was a revolt in the English county of Norfolk during the reign of Edward VI, largely in response to the enclosure of land. It began at Wymondham on 8 July 1549 with a group of rebels destroying fences that had been put up by wealthy landowners. One of their targets was yeoman Robert Kett who, instead of resisting the rebels, agreed to their demands and offered to lead them. Kett and his forces, joined by recruits from Norwich and the surrounding countryside and numbering some 16,000, set up camp on Mousehold Heath to the north-east of the city on 12 July.

Norfolk is a ceremonial county in the East of England and East Anglia. It borders Lincolnshire and The Wash to the north-west, the North Sea to the north and east, Cambridgeshire to the west, and Suffolk to the south. The largest settlement is the city of Norwich.