Wiho I was a figure identified as the inaugural bishop of the Diocese of Osnabrück. Although traditionally recognized as a Catholic saint, historical evidence suggests he may not have existed. His presence in the historical record stems from two documents dated 803 and 804, which were later identified as 11th-century forgeries. These documents were likely created during a period of dispute regarding tithes under Bishop Benno II to establish historical legitimacy for the diocese.
Historical authenticity
The existence of this bishop is highly questionable because his only mentions appear in fraudulent charters. These documents, attributed to Charlemagne, were manufactured centuries after the supposed events to serve specific interests during the Middle Ages. Consequently, much of the information regarding his life is considered to be invented by late medieval historians.
Veneration
Despite the lack of historical proof, Wiho I has been honored as a saint since the 17th century. The Catholic Church commemorates him on April 20, which is traditionally observed as the date of his death.