Litany of the Saints ceremonies involving the Pope, the canonized Popes are moved from their usual place to form part of an expanded list of Popes prior to other bishops and doctors. A commercially published setting of the Litany of Saints by John Becker includes the name of Origen among its additional saints. Although recognized by Pope Benedict XVI as a significant theologian, Origen is not listed in the Roman Martyrology and was anathematized in the year 553 for certain opinions he was alleged to have held. Origen's inclusion in a published litany, albeit without the official sanction of Catholic authorities, has resulted in
Prophecy of the Popes called "Purported prophecies", that the high level of accuracy of the alleged prophecies up until the date they were published, compared with their high level of inaccuracy after that date, is evidence that they were created around the time of publication. The prophecies and explanations given in Wion correspond very closely to a 1557 history of the popes by Onofrio Panvinio (including replication of errors made by Panvinio), which may indicate that the prophecies were written based on that source. One theory to explain the creation of the prophecies, put forward by 17th-century French priest and encyclopaedist Louis Moréri, among