Which social groups were the most powerful politically in each society

Patricians were the most powerful politically in each society. There were three foremost political groups in old Catholicism which are described as follows:

The aristocratic patricians were rich and prosperous landowners, managing civilians, authority directors and very well off businessmen. The plebeians were not very rich they were mediocre citizens but the patricians were wealthy aristocrats. Rome ancient were slaves ranges from 30% to 40%.  

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