The second battle for Edessa is covered in many sources. From a Frankish perspective, there is William II of Tyre; from the Syriac perspective, Michael the Syrian, Bar Hebraeus and the anonymous Chronicle of 1234; for the Muslims, Ibn al-Ḳalānisī of Damascus, Ḳamāl al-Dīn Ibn al-ʿAdīm of Aleppo, Ibn al-Athīr, Abū Shāma and the anonymous Būstān al-jāmiʿ; and for the Armenians, Gregory the Priest's continuation of Matthew of Edessa.[1][2]