▁internal ▁troubles ▁in ▁the ▁Mong ol ▁Empire . ▁The ▁bulk ▁of ▁the ▁Mong ol ▁army ▁left ▁Sy ria , ▁with ▁a ▁smaller ▁force ▁left ▁under ▁Kit bu qa ▁to ▁occup y ▁the ▁territory . ▁ ▁This ▁provided ▁an ▁opportunity ▁for ▁the ▁Egypt ian ▁Mam lu ks . ▁ ▁The ▁Mam lu ks ▁advanced ▁north ward ▁from ▁C airo ▁to ▁eng age ▁the ▁Mong ols , ▁along ▁the ▁way ▁negoti ating ▁an ▁unusual ▁p act ▁of ▁neutral ity ▁with ▁the ▁Fran ks ▁of ▁A cre ▁that ▁allowed ▁the ▁Egypt ians ▁to ▁pass ▁through ▁Frank ish ▁territory ▁un m ol ested . ▁ ▁The ▁Mam lu ks ▁were ▁thereby ▁able ▁to ▁defeat ▁the ▁Mong ols ▁at ▁the ▁historic ▁Battle ▁of ▁Ain ▁J al ut ▁in ▁September ▁ 1 2 6 0 . ▁ ▁With ▁the ▁Mong ol ▁army ▁removed , ▁the ▁Mam lu ks ▁then ▁proceeded ▁to ▁conquer ▁Sy ria ▁and ▁Iran , ▁which ▁had ▁been ▁previously ▁rav aged ▁by ▁the ▁Mong ols . ▁ ▁The ▁Mam lu ks , ▁under ▁their ▁leader ▁Ba ib ars , ▁also ▁began ▁to ▁threaten ▁Ant io ch . ▁ ▁In ▁ 1 2 6 3 , ▁Boh em ond ▁and ▁H eth ou m ▁tried ▁various ▁methods ▁of ▁reg aining ▁control ▁of ▁the ▁situation . ▁They ▁kid n apped ▁the ▁Greek ▁patri arch ▁E uth ym ius , ▁and ▁carried ▁him ▁off ▁to ▁Armen ia , ▁replacing ▁him ▁with ▁the ▁Latin ▁patri arch ▁Op iz zo . ▁They ▁also ▁attempted ▁to ▁gain ▁some ▁financial ▁le verage ▁over ▁the