William Grindecobbe motivated at least in part to rebel as a result of the pressures of papal taxation. Along with Wat Tyler and John Wrawe, he was one of the key leaders of the peasants during the revolt of 1381, leading the townspeople of St Alban's on 15 June. He was executed in 1381 along with John Wrawe and John Ball. His trial and execution was overseen by Henry le Despenser. During the Peasants' Revolt of 1381, he became well known for his actions against the high lord Thomas de la Mare, Abbot of St. Albans. He led a deputation to King
Peasants' Revolt following year there was an investigation into a plot to kill the sheriff of Devon. When negotiating rents with their landlords, peasants alluded to the memory of the revolt and the threat of violence. There were no further attempts by Parliament to impose a poll tax or to reform England's fiscal system. The Commons instead concluded at the end of 1381 that the military effort on the Continent should be "carefully but substantially reduced". Unable to raise fresh taxes, the government had to curtail its foreign policy and military expeditions and began to examine the options for peace. The institution