The Marwanids were a Kurdish dynasty in the Diyar Bakr region of Upper Mesopotamia and Armenia. The founder of the Marwanids, Bad or Baz was a shepherd, took up arms and became a war chief. He was popular. From the middle of the tenth century he made conquests in Eastern Anatolia. He first came from the south and took Erciş and the fortified positions around it. Baz strengthening his influence, captured Diyarbakir (Amid) and Silvan and Nusaybin, which were under the control of the Buyids.