The Roman commoners during the royal period were mainly

In Rome during the royal period, civilians usually believed that they came from outside the clan, some were immigrants, and some were residents of conquered areas. Because these people were outside the old clans, curia, and tribes, they were not Populus Romanus, that is, they were not authentic Roman people. They were free and could own real estate, but they had to pay taxes and perform military service. They could not hold any official positions, neither participate in the Curia Congress nor participate in the distribution of state-owned land obtained through conquest. In a word, there are only obligations but no rights. Therefore, from the beginning, there was a contradiction between the common people and the nobles. The formation of the Roman state was actually the result of a struggle between civilians and nobles.