From the beginning of the English Civil War (where he participated in the Battle of Edgehill) until his escape to the continent in 1651 Charles II had ample opportunity to die. Say he dies during his escape to France after his invasion of England failed in the Battle of Worcester. What are the effects on the Commonwealths politics? Is there any credible candidate to take the throne after Cromwell dies? Who was next in line for the throne anyway?