Between 1158 and 1161 a series of Byzantine campaigns against the Seljuk Turks of the Sultanate of Rûm resulted in a treaty favourable to the Empire, with the sultan recognising a form of subordination to the Byzantine emperor. Immediately after peace was negotiated the Seljuk sultan Kilij Arslan II visited Constantinople where he was treated by Emperor Manuel I Komnenos as both an honoured guest and an imperial vassal. Following this event there was no overt hostility between the two powers for many years. It was a fragile peace, however, as the Seljuks wanted to push from the arid central plateau of Asia Minor into the more fertile coastal lands, while the Byzantines wanted to recover the Anatolian territory they had lost since the Battle of Manzikert one hundred years earlier.