Al-Azhar Mosque ( , "mosque of the most resplendent") is a mosque in Islamic Cairo in Egypt. Al-Mu'izz li-Din Allah of the Fatimid Caliphate commissioned its construction for the newly established capital city in 970. Its name is usually thought to allude to the Islamic prophet Muhammad's daughter Fatimah, a revered figure in Islam who was given the title az-Zahra' ("the shining or resplendent one"). It was the first mosque established in Cairo, a city that has since gained the nickname "the City of a Thousand Minarets."