Hades was the Greek god of the underworld and riches (precious stones and jewels). He is eldest of his two brothers, Zues and Poseidon, along with three sisters, Demeter, Hera, and Hestia. He is married to Persephone (even though he forced her to) and is the keeper of the dead. It was believed that when you die, you would have to go through the underworld. He is passive but is also strict about the law and gets furious if someone try's to leave his domain.
The Roman version of Hades is Pluto, which has the same powers and has everything Hades had. Pluto and Hades are very similar as for having almost the same story but a major difference was that Pluto was also the god of wealth because of the minerals found in the ground. Also Pluto was more of a stern ruler and a more loving husband to Proserpina (the roman version of Persephone). Hades was the most violent and cruel of all the gods and goddesses and more bitter since being the god of the underworld.