The Bristol Rebellion was an rebellion that occurred between 1312 and 1316. it arose from disagreement between the mayor and the burgess of Bristol and the Constable of the royal castle Lord Bartholomew de Baldesmere. The resulting rebellion lead to the construction of stone walls between the castle and the town as well as the townsfolk laying siege to the castle. The rebellion ended with a week long siege ordered by Edward II.
Baldesmere was appointed Constable of the royal castle by Edward II 21st August 1307. The first years of his office were unremarkable but must have causeed resentment with some of the merchants of Bristol s by 1312 they had divided into factions some for and some against Baldamere.