The Aqsunqur Mosque (also known as the Blue Mosque or the Mosque of Ibrahim Agha) is located in Cairo, Egypt and is one of several "blue mosques" in the world. It is situated in the Tabbana Quarter in Islamic Cairo, between Bab Zuweila and the Citadel of Saladin (Cairo Citadel.) The Aqsunqur Mosque also serves as a funerary complex, containing the mausoleums of its founder Shams ad-Din Aqsunqur, his sons, a number of children of the Bahri Mamluk sultan an-Nasir Muhammad and that of its principal restorer, Ibrahim Agha al-Mustahfizan.