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 hated legal system centred in London. As the historian Miri Rubin describes, for many, "the problem was not the country's laws, but those charged with applying and safeguarding them". Concerns were raised about these changes in society. William Langland wrote the poem "Piers Plowman" in the years before 1380, praising peasants who respected the law and worked hard for their lords, but complaining about greedy, travelling labourers demanding higher wages. The poet John Gower feared England might see an uprising similar to the French Jacquerie revolt of 1358, in which the peasants had risen up against their masters. There was