Sayf al-Din MuhammadSayf al-Din Muhammad was the king of the Ghurid dynasty from 1161 to 1163. He was the son and successor of Ala al-Din Husayn.BiographyAfter the accession of Sayf, he began persecution of the Ismailis who were favored during the reign of his father. Sayf also freed the two sons of Baha al-Din Sam I, Ghiyath al-Din Muhammad and Mu'izz al-Din Muhammad. With the aid of Ghiyath al-Din Muhammad, Sayf later waged war against the Oghuz Turks. Sayf was betrayed and murdered during a battle in 1163 near Merv by a brother of the Ghurid general Warmesh ibn Shith, whom Sayf had executed. Sayf was then succeeded by Ghiyath.