"Most of the attendants were either his slaves or his freedmen"
An honorific base dedicated by a freedman to his patron (most likely his former master)
Public DomainAn honorific base dedicated by a freedman to his patron (most likely his former master) - Credit: Marie-Lan Nguyen/Wikimedia Commons

If a Roman master chose to free a slave then he or she would become a freedman or freedwoman, gaining limited citizenship and the right to marry and begin their own household. Freedmen became the clients of their former masters, took part of their name as their own, and were expected to always respect and support them. Some slaves could collect money and eventually ask to buy their own freedom, but the choice of whether to actually free his slaves or not rested entirely with the owner. Many chose to free slaves in their will.