Алп-Арслан
Ani surrendered to the Byzantine Empire in 1045, who held it until 1064, when the city was captured by the Seljuks, led by Alp Arslan. Alp Arslan and his soldiers performed their first prayer in Ani at the cathedral. Consequently, the cathedral was converted into a mosque and called Fethiye Mosque (). Official Turkish sources often refer to it by that name.