Musa ibn Zurara
Musa ibn Zurara (; ) was the emir of Arzen, located on the borders between Upper Mesopotamia (Arabic: al-Jazira) and Armenia, which at the time were provinces of the Abbasid Caliphate. Musa is the first attested member of his family, and he is only mentioned in the sources by name and patronymic, without a nisba. Consequently the exact origin and history of his family prior to him is unknown; however they had clearly settled in Arzanene (Armenian: Aghdznik) as part of the wider influx of Arab tribes into Armenia that began under Harun al-Rashid (), and may well have been members of the Banu Bakr tribe, much like the Shaybanids who dominated the area of Diyar Bakr. Musa's fief of Arzen was the capital of the district of Arzanene, which in turn was held to belong to the Jaziran sub-province of Diyar Bakr. It is known that Musa had five brothers: Sulayman, Ahmad, Isa, Muhammad, and Harun. In common with other Arab leaders in Armenia, Musa married the sister of a Christian Armenian prince, Bagrat II Bagratuni, whose province of Taron bordered Musa's own domain of Arzanene. His ties to the powerful Bagratuni prince certainly strengthened Musa's own position against