Sharaf al-Din Ismail, better known as Emirci Sultan (died 1240), was a mystic involved in the Babai revolt during the 13th century. According to Ottoman historian Gelibolulu Mustafa Ali, Emirci Sultan arrived in Anatolia in the year 1203âÂÂ4. He settled and formed the (religious school) in a Christian village near Alaca, converting much of the residents to Islam.