Doctor Who: The Settling

Note to Sir Arthur Aston, governor of the town of Drogheda, 10 September 1649. "Sir, Having brought the army belonging to the Parliament of England before this place, to reduce it to obedience, to the end effusion of blood may be prevented, I thought fit to summon you to deliver the same into my hands to their use. If this be refused, you will have no cause to blame me. I expect your answer and rest your servant. O. Cromwell."