Roman Sionis (Earth-2899)

"I'm not happy, and, while you may not see this duo to the mask, it means someone is going to pay for it."

- - Black Mask

Roman Sionis was a mob boss and businessman operating in Chicago who dealt mainly with drug dealings and gun trading. He shrouded his identityas a rich philantropist as Black Mask when operating criminally. A enemy of Carmine Falcone, the Chechen and Gambol Jackson, he allied with them after the Batman started operating in the city and enduring their plans. They allied themselves with chinese businessman Chun Lau, and later the Joker, which proved to be a fatal mistake when he corrupted the city's DA, Harvey Dent, into the murderous Two-Face, who killed Black Mask because of his knowledge over the moles on the city's police department.