This is a list of kings of Iran of the medieval Islamic period, AD 820 to 1432, arranged genealogically. For the early Islamic period before 820, see: * Rashidun Caliphate: Umar (634–644), Usman (644–656), Ali (656–661) * Umayyad Caliphate, 661–750 * Abbasid Caliphate ,750–1258 (brief/nominal ruling since 820) For the period after 1506, see * Timurid dynasty, 1370–1506 * Turcomans: Kara Koyunlu (1375–1468) and Ak Koyunlu (1378–1508) * Safavid dynasty, 1502–1736 * Afsharid dynasty, 1736–1796 * Zand dynasty, 1750–1794 * Qajar dynasty, 1794–1925 * Pahlavi dynasty, 1925–1979