Pope Leo X In this video, Dr. Kolb presents a brief biography of Pope Leo X, the pope in Rome when Luther wrote the 95 Theses. Rev. Dr. Robert Kolb, The Lutheran Confessions, Who's Whobasilica, biography, cathedral, de Medici, Dominican Order, Florence, indulgence, Leo X, Lorenzo, Luther, papacy, Pope, Reformation, Roman Catholic, Rome, St. Peter's Basilica