Oliver Cromwell (クロムウェル Kuromuweru?) is the leader of Reconquista who is responsible for the Albion War. He is also the one who gave the orders to Wardes to kill the Prince of Albion. A fake Void user borrowing Sheffield's power to reanimate the dead. He is killed by Gallia's bombardment of his HQ after Gallia reneges on the secret treaty.