Altarpieces and Iconography
Following completion of construction in the 1620s, and reaching a peak in the first half of the 1630s, a dazzling array of artists worked side by side creating a series of some twenty-four works of art, primarily altarpieces, which, in their programmatic relationship to one another and to the hagiographic traditions of the Church, proclaimed the complex identity of the Papacy and the liturgical mission of “the cathedral of the world.”