In the center of the apse is the painting The Virgin Mary on the Throne between Seven Angels, by an unknown artist (thought to be Lorenzo Lotto). It was commissioned by Fr Antonio Del Duca in Venice in 1543. The Blessed Virgin is portrayed with the Holy Child suckling at her breast (this representation is known as the Madonna of Milk). She is crowned by the Archangels Michael and Gabriel. The seven angels represent the Angelic Principalities, and each hold a scroll indicating his duties. In the upper corners are the prophets David and Isaiah.