Thus, the situation became stable for Hulagu in Aleppo, after suppressing all aspects of resistance and ruining all walls and citadels. Then, Hulagu wanted to move to another place in Shaam. He brought Al-Ashraf Al-Ayyoobi, the emir of Hims, and one of the betrayers who allied himself to the Tatars, and dealt generously with him.

He gave him the emirate of Aleppo beside Hims, in order to ensure his complete allegiance to him, and make him note that it would be for his personal benefit that the Master, Hulagu, should continue to occupy the territories. But of course, he was put under the thorough supervision of some Tatarian leaders. Emir Al-Ashraf Al-Ayyoobi became no more than an administrative governor of the city, i.e. a puppet governor in front of the people, versus the military Tatarian actual governor, in whose hand the authority, rule and power were.

Having overthrown Aleppo, Hulagu moved westward to the Muslim fortress of Harim (Harenc), about 50 kilometers far from Aleppo, whose Muslim garrison rejected to surrender. So, he broke into the fortress after resistance for many days, and slew all its inhabitants.

Then, he continued his way westward till he reached Antioch, the emirate of Bohemond, his Christian ally. Hulagu camped outside the city and called for a conference to discuss the status quo in the new Middle East according to a Tatarian vision. His allies in the region started to come one after another to offer allegiance and obedience: Hetom, the king of Armenia, Bohemond, the emir of Antioch, both Kaykaus II and Kilij Arslan IV, the Seljuk Muslim emirs of Anatolia, which was near Antioch.

https://en.islamstory.com/index.php/en/artical/20816/hulagu-continues-westward