The twins Romulus and Remus were born to their father Mars, the god of war, and their mother Rhea Silvia, a vestal virgin. The minute they were born, King Numitor took them and threw them in a river hoping they would drown.
However, they were saved by a she-wolf who fed them with her own milk and raised them.
The two brothers found out who they really are and decided to kill Amulius and put their Grandfather back on the throne. They then decided to build a city, but couldn't deicide on how to build it, so they built two.
One day Remus visited Romulus and jumped over his wall to make fun of him, so Romulus got mad and killed him.
Romulus then became the first King of Rome and populated his city with slaves and criminals.
Later, Romulus dies and his father carries his body to the heavens to be worshipped by the gods.