Dawud ibn Ali al-Hashimi

Al-Hashimi was the son of Ali ibn Abd Allah ibn al-Abbas. He was a paternal uncle of the first two Abbasid caliphs al-Saffah (r. 750–754) and al-Mansur (r. 754–775), making him one of the "uncles" ('umumah) that held a high degree of influence during the early years following the Abbasid Revolution.

His nephew, caliph al-Saffah appointed him^[2] governor of Medina and Mecca in 750, however he died in the office that same year he was succeeded by Ziyad ibn Ubaydallah the maternal uncle of al-Saffah. who appointed him^[3] in 750.

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• Khalifah ibn Khayyat (1985). al-Umari, Akram Diya' (ed.). Tarikh Khalifah ibn Khayyat (in Arabic) (3rd ed.). Al-Riyadh: Dar Taybah.
• Yarshater, Ehsan, ed. (1985–2007). The History of al-Ṭabarī (40 vols). SUNY Series in Near Eastern Studies. Albany, New York: State University of New York Press. ISBN 978-0-7914-7249-1.