The English Civil War began in 1642, mainly because of conflicts between James' son, Charles I, and Parliament. The defeat of the Royalist army by the New Model Army of Parliament at the Battle of Naseby in June 1645 destroyed most of the King's forces. The capture and trial of Charles led to his beheading in January 1649 at Whitehall Gate in London. A republic was declared, and Oliver Cromwell became the Lord Protector in 1653. After he died, his son Richard Cromwell followed him in the office, but soon quit. The monarchy was returned in 1660, after England had a time of anarchy, with King Charles II again in London.