Leader of the 1381 Peasants' Revolt, Wat Tyler
Although some sources suggest otherwise, Peter Linebaugh in his book 'Stop, Thief!: The Commons, Enclosures & Resistance' is of the understanding that the dagger on the shield of the London coat-of-arms refers to the weapon used by Lord Mayor (and sex-trafficker) William Walworth when he murdered the leader of the Peasants' Revolt, Wat Tyler.
"the urban bourgeoisie coming to power on the backs of the Peasants' Revolt".