Kar-Kiya dynasty
The Kar-Kiya dynasty, also known as the Kiya'ids, was a local Iranian Gilaki dynasty who were originally Zaydi, it mainly ruled over Biya-pish (eastern Gilan) from the 1370s to 1592. The Kar-Kiya dynasty helped Shah Ismail I to establish Safavid Iran and later became one of its vassal states.