Linked from
The 8 pages that link to Marwan II, each with the reason it gives.
Abu MuslimCompared with: His defeat marked the collapse of the dynasty Abu Muslim’s forces opposed.
Al-MansurRelated: His fall opened the path to Abbasid rule before Al-Mansur’s accession.
Battle of the ZabBroader topic: His defeat at the Great Zab ended his rule and forced his flight.
Arab invasion of ArmeniaRelated: His era saw major Armenian resistance to Umayyad rule.