There wasn't just one, many had different aspects:
Erelus was the god of pure darkness in ancient Rome.
Zeus
Jupiter
It is Cupid
Osiris was an Egyptian god.
Mars
In ancient Rome all religions where allowed, including animism.
Geb is the ancient Egyptian god of the earth, a god of the earth's vegetation and fertility.
Geb was personification and god of the earth.
No.
Jupiter was the king of the gods.
I believe it's Jupiter.