Kilic Arslan II, the Seljuk sultan of Ikonion and Shahan-Shah his brother, Mleh, the ruler of Cilician Armenia and Nur al-Din of Aleppo joined in a common plan to attack Byzantium, bringing Manuel I from the west to Philadelphia to face them. Manuel wrote censoriously to Kilic Arslan, asking why he had suddenly attacked. The reply was that the caliph disapproved of friendship with the Byzantines. With a second embasy Manuel threatened to attack in 15 days. The enemy, terrified, began peace negotiations, allowing Manuel to return to the capital to claim a bloodless victory