 In the Roman Republic, and I think there are more than the four I have listed here, but the ones that I have listed here are the consuls, which I guess in some ways is like a president, but not exactly. The tribunes, which is someone who is supposed to represent the people. In fact, I even think the word tribune means protector of the people. So when you see a newspaper call itself a tribune, that's sort of the root word there. Concilium plebis?