Histiaeus
Histiaeus (Ancient Greek: Ἱστιαῖος, died 493 BC), the son of Lysagoras, was the tyrant of Miletus in the late 6th century BC.
Histiaeus owed his status as tyrant of Miletus to Darius I, king of Persia, who had subjugated Miletus and the other Ionian states in Asia Minor.
According to Herodotus, Histiaeus, along with the other tyrants under Darius' rule, took part in the Persian expedition against the Scythians, and were put in charge of defending the bridge that Darius' troops had placed across the Danube River. The Scythians attempted to persuade Histiaeus and the others to abandon the bridge; one faction, led by Miltiades of Athens, at that time tyrant of the Chersonese, wanted to follow the Scythians' advice. However, Histiaeus argued that they should stay, as they owed their positions as tyrants to Darius and would surely be overthrown if he were killed.
Instead, according to Herodotus, Histiaeus suggested that they pretend to follow the Scythian plan. So Histiaeus was sent as an ambassador to the Scythians to tell them that the tyrants would accept the Scythian plan, while the rest of the tyrants acted as if they were demolishing the bridge. Histiaeus persuaded the Scythians to look for the Persian forces.