Ahmad ibn Muzahim ibn Khaqan, Abbasid military governor of Egypt in 868 al-Fath ibn Khaqan (killed 861), Abbasid writer and official, friend and chief adviser of Caliph al-Mutawakkil Muzahim ibn Khaqan (died 868), Abbasid military commander, governor of Egypt in 867–868 Ubayd Allah ibn Yahya ibn Khaqan (died 877), Abbasid official, vizier in 851–861 and 870–877 al-Fath ibn Khaqan (al-Andalus) (died 1134), Andalusi writer