William Walworth group conspired to keep food prices up, lent money to the king at inflated interest, and through personal and financial influence persuaded the king to issue edicts profitable to themselves. His most famous exploit was his encounter with Wat Tyler during the English peasants' revolt of 1381, in his second term of office as Lord Mayor. In June of that year, when Tyler and his followers entered south London, Walworth defended London Bridge against them. He was with Richard II when he met the insurgents at Smithfield, and killed the rebel leader with his baselard. The circumstances of the killing
William Cotton (Lord Mayor) Sheriff of London and Middlesex from 1868 to 1869, and Lord Mayor of London from 1875 to 1876, during which years he opened the new poultry and provisions market at Smithfield and presided over a grand banquet welcoming the Prince of Wales on his return from a tour of India. In 1868 he had stood for parliament unsuccessfully at Southwark. At the 1874 general election he was elected Member of Parliament for City of London. He lost his seat in parliament in the 1885 UK general election after representation was reduced from four to two under the Redistribution of Seats