Based on the North around Yorkshire and Lincolnshire. Catholic Rebels made mostly of commons but also involved gentry. Led by lawyer Robert Aske. Rose in opposition to the Reformation, mainly the Dissolution of the Monasteries. They were also in favour of removing Thomas Cromwell and other "evil councilors" as well as ensuring the rights of Princess Mary to be re-legitimised. Consised of 40,000 men, far larger than what Henry could prepare in time. Took Pontefract Castle, the Key to the North. Resolved with negotiations by the Duke of Norfolk where Henry agreed to talk with Robert Aske. The rebels dispersed. Another rebellion broke out later in the year. Robert Ask and other Pilgrim leaders were blamed and executed. Henry never complied with their demands.