The Buyid dynasty or the Buyids ( Āl-e Buye), also known as Buwaihids, Bowayhids, Buyahids, or Buyyids, were a Shī‘ah dynasty of Daylimite or Kurdish origin from Daylaman in Gilan. They founded a confederation that controlled most of modern-day Iran and Iraq in the 10th and 11th centuries. During the 10th and 11th centuries, just prior to the invasion of the Seljuq Turks, the Buyids were the most influential dynasty in the Middle East.