Maestro Custodio
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El Maestro Custodio is believed to have been a 14th-century Benedictine monk, living in the city of Oviedo in Asturias, Spain.[1] Several later historians cited a book by him, a now lost history of Asturias.[1] Strangely, although the 18th century historians cited Maestro Custodio's work, they claimed it had already been lost at the time they were writing.[1]
