The city had been founded several years previously, in 1146, by another member of the dynasty, al-Din Husayn's brother, Qutb al-Din Muhammad. Throughout the reign of subsequent Ghurid sultans, Firozkoh continued to prosper as the dynasty expanded. Firozkoh was used as a summer capital, as the leadership of the Ghorid sultanate were semi-nomadic.[1][2] The city competed with Herat as a center of Ghurid art, literature, and theology.