Thrasybulus (Greek, Modern (1453-);: Θρασύβουλος ὁ Μιλήσιος) was the tyrant of Miletus in the 7th century BC. Under his rule, Miletus fought a lengthy war against Lydia. This war ended without a decisive victor (a result that Herodotus credits to Thrasybulus's tricking Alyattes into making peace.[1]). Following the war, Miletus and Lydia concluded an alliance.
Thrasybulus was an ally of Periander, the tyrant of Corinth. He features in a famous anecdote from Herodotus's Histories,[2] in which a messenger from Periander asks Thrasybulus for advice on ruling.[3] Thrasybulus, instead of responding, takes the messenger for a walk in a field of wheat, where he proceeds to cut off all of the best and tallest ears of wheat. The message, correctly interpreted by Periander, was that a wise ruler would preempt challenges to his rule by "removing" those prominent men who might be powerful enough to challenge him; this story gave the name to tall poppy syndrome.