Agapius[a] of Hierapolis, also called Maḥbūb ibn Qusṭanṭīn[b] (died after 942), was a Melkite Christian historian and the bishop of Manbij in Syria.
The portion dealing with the Arab period is extant only in a single manuscript and breaks off in the second year of the caliphate of al-Mahdi (160AH = 776–7 AD) and during the time when Emperor was Leo IV (775–780).
For the early history of Christianity, Agapius made use uncritically of apocryphal and legendary materials.
[1] For the following secular and ecclesiastical history, he relied on Syriac sources, in particular the World Chronicle of the Maronite historian Theophilus of Edessa (d. 785) for the end of the Umayyad period and the beginning of the Abbasids.
His history contains a version of the Testimonium Flavianum that lacks many of the most clearly Christian elements of the text in surviving Josephus manuscripts.