The baroque painting of St. Augustine in the Cathedral after original by Claudio Coello (1642-1693). A seemingly ordinary request to examine a 12th-century manuscript containing several sermons by St. Augustine, an early Christian theologian, turned into an unexpected discovery. While studying the sermons, Tornau, whose research focuses on late antique literature, including the writings of St. Augustine, was delighted with the discovery but also cautious about its authenticity. According to the scholars who authenticated the sermons, Augustine does not immediately settle the debate. “This is not a sensational find like the 30 writings of St Augustine that were discovered in Mainz in 1990.