404 BC deaths

Alcibiades (; ; 450 – 404 BC) was an Athenian statesman and general. The last of the Alcmaeonidae, he played a major role in the second half of the Peloponnesian War as a strategic advisor, military commander, and politician, but subsequently fell from prominence.

The ninth Achaemenid emperor (423–404 BC)

Theramenes (; ; died 404/403 BC) was an Athenian military leader and statesman, prominent in the final decade of the Peloponnesian War. He was active during the two periods of oligarchic government at Athens, the 400 and later the Thirty Tyrants, as well as in the trial of the generals who had commanded at Arginusae in 406 BC. A moderate oligarch, he often found himself caught between the democrats on the one hand and the extremist oligarchs on the other. Successful in replacing a narrow oligarchy with a broader one in 411 BC, he failed to achieve the same end in 404 BC, and was executed by th

Polemarchus (; ; 5th century – 404 BC) was an ancient Athenian philosopher from Piraeus.