Paedagogus (occupation)
In ancient Greece, a paidagogos (Ancient Greek: παιδαγωγός) was a slave entrusted with supervising boys from the age of seven and in the Roman Republic, the paedagogus, plural paedagogi or paedagogiani, was a slave or a freedman who taught the sons of Roman citizens the Greek language. In the period of the Roman Empire, the paedagogus became the director of the paedagogium.