Johanna Ferrour, also known as Joanna Ferrour or Joan Marchall, was a leader of the 1381 Peasants' Revolt in England. Originally from Rochester, she led a group of rebels that burned the Savoy Palace, stormed the Tower of London, and she ordered the execution of Archbishop Simon Sudbury and Robert Hales. Ferrour, like many others who participated in the revolt, rose after the implementation of the much-hated poll tax of 1380. Despite her violent deeds, there is no record that she was ever convicted of any charges brought against her after the revolt.