E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The thirty magistrates appointed by Sparta over Athens, at the termination of the Peloponnesian war. This reign of terror, after one years continuance, was overthrown by Thrasybulos (B.C. 403).
The Thirty Tyrants of the Roman empire. So those military usurpers are called who endeavoured, in the reigns of Valerian and Gallienus (253268), to make themselves independent princes. The number thirty must be taken with great latitude, as only nineteen are given, and their resemblance to the thirty tyrants of Athens is extremely fanciful. They were