Cater-cornered to the cathedral is this Jesuit church, which rivals the former in grandeur and prominence on the square (an intentional move by the Jesuits, and one that had Church diplomats running back and forth to the Vatican). Begun in the late 16th century, it was almost entirely demolished by the quake of 1650, rebuilt, and finally finished 18 years later. Like the cathedral, it was also built on the site of an important palace, that of the Inca Huayna Cápac (said to be the most beautiful of all the Inca rulers' palaces). Inside, it's rather gloomy, but the gilded altar is stunning, especially when illuminated. The church possesses several important works of art, including a picture of Saint Ignatius de Loyola, by the local painter Marcos Zapata, and the Cristo de Burgos crucifixion by the main altar. Also of note are the paintings to either side of the entrance, which depict the marriages of Saint Ignatius's nephews; one is the very symbol of Peru's mestizo character, as the granddaughter of Manco Inca weds the man who captured the last Inca, Tupac Amaru, the leader of an Indian uprising.