For over two centuries, the Vatican officially recognized a man who never lived as the leader of the Catholic Church. He had a recognized name, an official painted portrait, and a widely accepted reputation for leading with absolute integrity.
Historians published detailed accounts about his honorable reign in the 900s, and his face still looks down from the walls of a major basilica in Rome. Yet, a formal historical audit in 1947 revealed a stunning truth about Pope Donus II. The highly respected pontiff was nothing more than an accidental typo.
A Mistake in the Papal Catalogues
The invention of Donus II stems from a misread Latin text regarding Benedict VI and Benedict VII. Benedict VI had been the bishop of Sutri, and early documents referred to him as Domnus de Sutri. Over time, editors altered the papal listings and inserted an antipope named Boniface VII directly after Benedict VI.
This insertion pushed the phrase Domnus de Sutri independently next to the year 974. Later readers assumed the word Domnus was the actual name of a completely separate pope. They shortened the word to Donus. Since a real Pope Donus had already held the position between 676 and 678, they added a numerical suffix to create Pope Donus II.
Fictional Portraits and Historical Records
Despite his nonexistent status, artists and authors created a rich history for him. Fanciful illustrations of Donus II began appearing as early as the 15th century, including a woodcut in the famous Nuremberg Chronicle published in 1493. In 1748, Pietro Piazza received a commission to remake the papal portraits at the Basilica of Saint Paul Outside the Walls. He painted Donus II to maintain an uninterrupted visual sequence of leaders.
Writers also fabricated specific details about his life. Author Alexis-François Artaud de Montor wrote that Donus II was a Roman who was elected in 972, governed for three months with great integrity, and was interred at the Vatican. Other authors claimed he reigned from 974 to 975 and noted he was never charged with any dishonorable actions.
The Vatican Audit of 1947
During the 18th century, Giovanni Marangoni utilized the mosaic gallery at Saint Paul Outside the Walls to formulate an official papal roster. Because of this list, the Holy See accepted Donus II as a legitimate pope for more than two hundred years. Contemporary sources from the 900s contained zero mentions of his papacy or any of his acts, but the timeline remained completely intact until 1947.
During that year, the Vatican conducted a formal audit of its historical records. The audit officially deleted Pope Donus II from history. The same investigation also discovered that Popes Cletus and Anacletus were the exact same person and corrected details concerning dozens of other historical figures.