The Maonna and Child is one of the central icons of Christianity, representing the Madonna or Mary, mother of Jesus and her son. After some initial resistance and controversy, the formula "Mother of God" (Theotokos) was adopted officially by the Christian Church at the Council of Ephesus, 431. The earliest representation of the Madonna and Child may be the wall painting in the Catacomb of Priscilla, Rome, in which the seated Madonna suckles the Child, who turns his head to gaze at the spectator.