Al al-Din (, the name presumably representing Ala-ud-din, d. 1312) was a Muslim Persian counterweight mangonel (or counterweight trebuchet) expert who served in Kublai Khan’s army in the conquest of the Southern Song Dynasty. In 1271 Kublai Khan dispatched envoys to obtain persons skilled in the management of mangonels [trebuchets] from his kinsman Abaqa, the Ilkhan in Persia. The latter sent Al al-Din and Ismail, together with their families, by post route to Hangzhou, where they began by building large mangonels which they erected in front of the city gates. Al al-Din was subsequently attached to the staff of the general Alihaya, with whom he crossed the Yangtse River, being present at the capture of many towns. He died in 1312, loaded with honors, and was succeeded in his dignities by his son Mahasha (). He is often referred to as the founder of the Mukri Kurdish tribe as during the rule of the Turkmens (ninth century AH) and at the beginning of the Darbas or Daryas region liberation from the control of one of the Turkmen tribes, he became the owner of that region. Later Him, Dei Barik, and Akhtachi annexed the Timurid and Selduz tribes to their possessions. Gradually, he formed a strong and powerful government and named his government and tribes "Mukri" and ruled for a long time without a war. Akhtachi, or Akhtasi, and Timur, the Khans of Khans, were the Mongol rulers who once ruled over the emirate of Mukriyan. References This article incorporates material from Herbert Giles's A Chinese Biographical Dictionary (London: Arthur Probsthain, 1898), which is now in the public domain. Year of birth unknown 1312 deaths Yuan dynasty people Military history of the Mongol Empire Iranian military personnel