The condemnation of Nestorius at the Council of Ephesus in 431 was a victory for the Alexandrian school and church, but its acceptance required a compromise, the "Formula of Reunion", entered into by Cyril of Alexandria and John of Antioch two years later. Cyril died in 444. Under his successor, Dioscurus I of Alexandria, a Constantinopole-based archimandrite named Eutyches, whose answer to questions put to him was judged heretical by Bishop Flavian of Constantinople, in turn accused Flavian of heresy. The Emperor convoked a council and entrusted its presidency to Dioscurus. This Second Council of Ephesus, held in 449, rehabilitated Eutyches and condemned and deposed Flavian and some other bishops. These appealed to Pope Leo I, who, calling their assembly not a "concilium" but a "latrocinium", a robber council rather than a proper council, declared it null and void. The Miaphysite Churches still recognize it as valid, but outside their ranks it is not reckoned as an ecumenical council.