Aga Khan III
Another Fatimid mausoleum that the Mausoleum of Aga Khan III may have looked to for inspiration is the Mashhad al-Sayyida Ruqayya, which was constructed in Cairo in 1133/527 AH. Like the Mausoleum of Aga Khan III, the Mashhad al-Sayyida Ruqayya features a dome with an octagonal transition zone as well as arched tracery windows with geometric patterns.