 Around 1600, the friars built a monastery next door famous for containing the Papal court's 17th century pharmacy (its furnishings and equipment have been preserved).The friars prepared their medicines with herbs from the attached garden.In 1650, nearly fifty years after the buildings completion, Carlo Rainaldi designed for the church a tempietto-shaped baldachino with 16 slender jasper Corinthian columns and a high altar.