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
Lord Mayor of London the Foreign Secretary addresses an audience of international dignitaries. The Lord Mayor sometimes takes part in major state occasions, for example in 2013, the then-Lord Mayor, Roger Gifford carried the Mourning Sword at Margaret Thatcher's Funeral, processing ahead of the Queen and Prince Philip, Duke of Edinburgh, into St Paul's Cathedral. The Lord Mayor performs numerous other functions, including serving as the Chief Magistrate of the City of London, Admiral of the Port of London, Rector of City, University of London, President of Gresham College, President of City of London Reserve Forces and Cadets Association, and Trustee of St Paul's