According to legend, it is built on the site of its dedicatee's martyrdom, with the first church constructed in the 10th century, and the second (and present) church being the result of Pope Urban VIII's 1624 rebuild.
San Sebastiano al Palatino is a basilica church in Rome. It is dedicated to Saint Sebastian, and is located on the Palatine Hill. According to legend, it is built on the site of its dedicatee's martyrdom, with the first church constructed in the 10th century, and the second (and present) church being the result of Pope Urban VIII's 1624 rebuild. That rebuild preserved the apse frescoes (of Christ between Saint Lawrence and Saint Stephen, Saint Sebastian and Saint Zoticus as deacons, and below them Our Lady flanked by angels) from the original church.