The Sionis Family is a wealthy family in Gotham City.
History
Sionis Investments
The Family were the owners of an extremely successful business, Sionis Investments. But after he took over the organization, Richard Sionis recruited men in violent and brutal ways. The men would fight to death in an abandoned office, in any way with no rules. Because of this, many of the employees had scars and wounds.[1]
Sionis's Imprisonment
Richard was eventually caught by Detective Gordon and because of this, Richard had him transported to the abandoned office. He ordered the men to kill him, saying that whoever killed would earn loads of money. Gordon defeated all the men, and even though Sionis had a weapon, Gordon also defeated him. Sionis was then arrested and brought to Arkham Asylum[2]. After a breakout in the facility, Sionis was whipped and butchered by Tabitha Galavan for not wanting to join The Maniax. Theo did this to serve as a warning to the other Arkham Asylum inmates that don't want to serve him.[3]