any strange deaths of leaders?

Sir Arthur Aston was the appointed governor of Drogheda, which occupied an important strategic position at the mouth of the River Boyne between Dublin and Ulster. Cromwell himself attacked Drogheda in September 1649. Aston refused the summons to surrender and was killed during the storming of the town — bludgeoned to death with his own wooden leg, which the Parliamentarian soldiers believed to be filled with gold coins.
bcw-project.org/biography/sir-arthur-aston