Romulus and Remus were twin babies who's parents were Rhea and Mars, the god of War .
The uncle of Rhea sent his servant to kill her and Mars because he was jealous. This is because Rhea lived with her uncle before because he didn't like her to have babies so one night she scaped and went with Mars and had the twins
Rhea's uncle sent his servant once again but this time it was to kill the babies. The servant didn't kill the babies but instead he sent them down in the river Tiber in a basket.
A she-wolf found Romulus and Remus, her babies had just passed away. The twins fed from the she-wolf milk until a shepherd rescued them.
The shepherd and wife raised the boys until they become two strong man. The twins left to build their own city.
Both men fought because they wanted to be the rulers of the city until Romulus killed Remus. Romulus named Rome after himself and became the first ruler of the city.