Complex sentence: An historic church, famous for its association with Robert Aske, leader of the insurgents of the Pilgrimage of Grace in October 1536 and was executed for treason on July 12th 1537.
Split into simpler sentences: An historic church, famous for its association with Robert Aske, leader of the insurgents in the Pilgrimage of Grace, October 1536. Aske was executed for treason on July 12th 1537.