What was Rome's legislature called?

The ancient Roman republic had three branches of government. In the beginning, the legislative branch was the Senate, a group made up of 300 citizens from Rome's patrician class, the oldest and wealthiest families of Rome. It was the patricians, tired of obeying the king, who revolted and threw out Tarquinius Superbus.

They were constantly being overlooked as a people and were being controlled by people who weren't really native to their homeland.