Nestorius' opponents, led by Cyril of Alexandria, viewed this as dividing Jesus into two distinct persons, the human who was Son of Mary, and the divine who was not. To them, this was unacceptable since by destroying the perfect union of the divine and human natures in Christ, it sabotaged the fullness of the Incarnation and, by extension, the salvation of humanity. The council accepted Cyril's reasoning, affirmed the title "Theotokos" for Mary, and anathematized Nestorius' view as heresy. (See Nestorianism)