The Battle of Chalgrove Field took place on 18 June 1643, during the First English Civil War, near Chalgrove, Oxfordshire. It is now best remembered for the death of John Hampden, who was wounded in the shoulder during the battle and died six days later.
Hoping to capture a Parliamentarian convoy containing £21,000 in cash, during the night of 17 to 18 June Royalist cavalry from Oxford led by Prince Rupert raided positions around Chinnor. Although they failed to intercept the convoy, they seized supplies and prisoners and headed home pursued by cavalry under Hampden and Major John Gunter.