The Battle of Manzikert ( ) was fought between the Byzantine Empire and the Seljuq Turks on August 26, 1071 near Manzikert (modern Malazgirt in Mus Province, Turkey). The decisive defeat of the Byzantine army and the capture of the Emperor Romanos IV Diogenes played an important role in undermining Byzantine authority in Anatolia and Armenia, and allowed for the gradual Turkification of Anatolia.