Satan

Satan is the demon lord of Hell from Abrahamic religions. In the DDCU, he is allied with the Chatistani Empire through his marriage to the God Emperor.

Description
Satan was originally an angel named Lucifer who pissed off God and fell from Heaven, becoming the lord of Hell. In the DDCU, the God Emperor proposed to Satan in an attempt to ally with Hell. Satan initially refused, but changed his mind and accepted the God Emperor's hand in marriage. With the power of Hell and Satan, Chatistan conquered the rest of Europe.