Governors from Banu Hashim

Abu al-Abbas Abdullah bin Muhammad bin Ali bin Abdullah bin Abbas was caliph for four years and six months.

Abu Ja'far, whose name was Abdullah bin Muhammad bin Ali, was caliph for twenty-two years.

Al-Mahdi was caliph for ten years.

Musa bin al-Mahdi was caliph for one year and one month.

Harun was caliph for twenty-three years.

Al-Ma'mun was caliph for twenty-two years less one month.