Equestrian rank

Social class in ancient Rome was hierarchical, but there were multiple and overlapping social hierarchies, and an individual's relative position in one might be higher or lower than in another. The status of freeborn Romans during the Republic was established by:

There were also classes of non-citizens with different legal rights, such as peregrini. Under Roman law, slaves were considered property and had no rights as such. However, some laws regulated slavery and offered slaves protections not extended to other forms of property such as animals. Slaves who had been manumitted were freedmen (liberti), and for the most part enjoyed the same legal rights and protections as free-born citizens.

Roman society was patriarchal in the purest sense; the male head of household (paterfamilias) held special legal powers and privileges that gave him jurisdiction (patria potestas) over all the members of his familia, a more encompassing term than its modern derivative "family" that included adult sons, his wife (but only in Rome's earlier history, when marriage cum manu was practiced), married daughters (in the Classical period of Roman history), and various relatives as well as slaves. The patron-client relationship (clientela), with the word patronus deriving from pater, "father", was another way in which Roman society was organized into hierarchical groups, though clientela also functioned as a system of overlapping social networks. A patron could be the client of a socially superior or more powerful patron; a client could have multiple patrons.

In the Roman Kingdom and the early Roman Republic the most important division in Roman society was between the patricians, a small elite who monopolised political power, whose ancestry was traced to the first Senate established by Romulus, and the plebeians, who comprised the majority of Roman citizens. Adult males who were not Roman citizens, whether free or slave, fall outside this division. Women and children were also not citizens, but took the social status of their father or husband, which granted them various rights and protections not available to the women and children of men of lower rank.

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