Flag of the City of London about the 13th century. His full figure representation was rapidly replaced with his symbolic representation of the sword. Some believe the sword is a dagger that commemorates the dagger of Sir William Walworth, former Lord Mayor of London, which killed Wat Tyler, leader of the Peasants' Revolt, in 1381. A verse at Fishmongers' Hall may explain the relationship: "Brave Walworth, Knight, lord mayor that slew Rebellious Tyler in his alarmes; The king therefore did give him in lieu The dagger to the city armes. However this is believed to be a fable, with the sword on the arms being used
Economics of English towns and trade in the Middle Ages system of poll taxes, aiming to spread the costs of taxation across the entire of English society. One result of the economic and political tensions was the Peasants' Revolt of 1381 in which widespread rural discontent was followed by invasion of London involving thousands of rebels. The rebels had many demands, including the effective end of the feudal institution of serfdom and a cap on the levels of rural rents. The ensuing violence took the political classes by surprise and the revolt was not fully put down until the autumn, with up to 7,000 rebels being executed in the aftermath.