The Carduchii or Karduchoi were a group of warlike tribes that inhabited an area stretching from the Botan River in the south to an area north of Cizre in present-day Turkey. Sometime after 401 BC, they expanded their authority into the northern Tigris valley. Between 165–95 BC, they established the independent kingdom of Gordyene, seemingly as a result of the power vacuum that took place following the weakening of the Greek Seleucid Empire (312 BC – 63 BC).