Britannica Sources used in this answer

Who added the large dome chamber to the Great Mosque of Isfahan?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Isfahan, Iran: Masjed-e Emām (“Imam Mosque”) — Isfahan Masjed-e Emām (“Imam Mosque”), Isfahan, Iran.

The large dome chamber at the Great Mosque of Isfahan was added by Niẓām al-Mulk, who served as the chief minister to the Seljuq ruler Malik-Shāh.12

While Niẓām al-Mulk commissioned this central sanctuary, his rival, Tāj al-Mulk, later constructed a smaller, separate dome chamber at the north end of the mosque's courtyard, which is noted for its exceptional architectural design.12