Cyril appealed to Pope Celestine I, charging Nestorius with heresy. The Pope agreed and gave Cyril his authority to serve a notice to Nestorius to recant his views within ten days or else be excommunicated. Before acting on the Pope's commission, Cyril convened a synod of Egyptian bishops which condemned Nestorius as well. Cyril then sent four suffragan bishops to deliver both the Pope's commission as well as the synodal letter of the Egyptian bishops. Cyril sent a letter to Nestorius known as "The Third Epistle of Saint Cyril to Nestorius." This epistle drew heavily on the established Patristic Constitutions and contained the most famous article of Alexandrian Orthodoxy: "The Twelve Anathemas of Saint Cyril." In these anathemas, Cyril excommunicated anyone who followed the teachings of Nestorius. For example, "Anyone who dares to deny the Holy Virgin the title "Theotokos" is Anathema!" Nestorius however, still would not repent.