The rulers of Aleppo ruled as kings, Emirs and Sultans of the city and its region since the later half of the 3rd millennium BC, starting with the kings of Armi, followed by the Amorite dynasty of Yamhad, and ending with the Ayyubid dynasty which was ousted by the Mongol conquest in 1260. The rulers of Yamhad used the Titles of King and Great King, the Hittite dynasty monarchs used the titles of king and viceroy. The Artuqids rulers used the Titles of King (Malik) and Emir, so did the Zengid rulers in addition to the title Atabeg, while the Ayyubid monarchs used the titles of Sultan and Malik