The Julio-Claudian dynasty was an Earth family that had produced the first six Emperors of the ancient Roman Empire: Julius Caesar, Augustus, Tiberius, Caligula, Claudius and Nero. Ensign James T. Kirk was briefly called "The Last of the Claudians" by his classmates at Starfleet Academy after he excelled in a debate on the virtues of a republic. (TOS novel: The Galactic Whirlpool)