Drachma_Darius_II_ObverseDarius II, often called Darius Nothus, reigned over the Achaemenid Empire for nineteen years. Not much is know about his reign. His name was originally Ochus, and he took the name Darius upon taking the throne.

Darius II spent most of his reign quelling revolts in Syria, Lydia (413), and Media (410). He lost Egypt in 410 BCE. He sided with Sparta in the Peloponnesian War, financing their fleet and using the opportunity to gain back territory the Persians had lost to Athens.