Mongol Empire Genghis. Kublai successfully took power, but civil war ensued as he sought unsuccessfully to regain control of the Chagatayid and Ögedeid families. During the reigns of Genghis and Ögedei, the Mongols suffered the occasional defeat when a less skilled general was given a command. The Siberian Tumads defeated the Mongol forces under Borokhula around 1215–1217; Jalal al-Din defeated Shigi-Qutugu at the Battle of Parwan; and the Jin generals Heda and Pu'a defeated Dolqolqu in 1230. In each case, the Mongols returned shortly after with a much larger army led by one of their best generals, and were invariably victorious. The
Mongol invasion of the Latin Empire mission was a renewal of submission, since a new khan had been elected since 1242. The Latin Empire is not listed by William of Rubruck among the tributaries of the Mongol Empire, however, nor was Baldwin II excommunicated for accepting Mongol overlordship as Bohemond V of Antioch was. The Mongol invasion of the Latin Empire took place just a year before the Mongols' crushing victory over the Seljuks of Anatolia at the battle of Köse Dağ (26 June 1243). Although Baldwin II had negotiated an alliance with the Seljuks in 1241, the Byzantine emperor John III Vatatzes provided aid to