 On 15 June , Richard left the city to meet with Tyler and the rebels at Smithfield . Violence broke out , and Richard 's party killed Tyler . Richard defused the tense situation long enough for London 's mayor , William Walworth , to gather a militia from the city and disperse the rebel forces . Richard immediately began to re @-@ establish order in London and rescinded his previous grants to the rebels . The revolt had also spread into East Anglia , where the University of Cambridge was attacked and many royal officials were killed . Unrest continued until the intervention of Henry le Despenser , who defeated a rebel army at the Battle of North Walsham on 25 or 26 June . Troubles extended north to York , Beverley and Scarborough , and as far west as Bridgwater in Somerset . Richard mobilised 4 @,@ 000 soldiers to restore order . Most of the rebel leaders were tracked down and executed ; by November , at least 1 @,@ 500 rebels had been killed . 
