Sarduri II
Being in permanent wars with the neighbouring nations, the Colchians managed to absorb part of Diauehi in the 750s BC, but lost several provinces (including the "royal city" of Ildemusa) to the Sarduri II of Urartu following the wars of 750–748 and 744–742 BC. Overrun by the Cimmerians and Scythians in the 730s–720s BC, and invaded by Assyria, the kingdom disintegrated and eventually came under the Achaemenid Persian Empire toward the mid-sixth century BC.