Inns of Court Regiment called to fight in the wars of King John or against Robert the Bruce. One such defence of Medieval London was organised in 1381 against Wat Tyler, during the Peasants' Revolt (when the Chief Justice was killed). In 1467, the Chief Justice of the Exchequer, then Recorder of the city of London, was instrumental in defeating a Lancastrian attack on the city of London. Further accounts, such as Henry Machyn's diary (1554), tell of more localised defences when "On the xij day of Juin was a gret fray be-twyn the Lord Warden's servants of Kent and the Ines of Greys
Peasants' Revolt also resented the presence of foreigners, Flemish weavers in particular. Londoners detested John of Gaunt because he was a supporter of the religious reformer John Wycliffe, whom the London public regarded as a heretic. John of Gaunt was also engaged in a feud with the London elite and was rumoured to be planning to replace the elected mayor with a captain, appointed by the Crown. The London elite were themselves fighting out a vicious, internal battle for political power. As a result, in 1381 the ruling classes in London were unstable and divided. Rural communities, particularly in the south-east, were