A copy made in the 12th century of the original that is dated 25 November 781 is considered the earliest document on the monarchy of the Kingdom of Asturias, although doubts exist as to the veracity of this document since the monastery, also called Antealtares in the Middle Ages, is not mentioned again until 969.
According to the charter of 781, twenty years before, in 761, the monks, Máximo, with his serfs, and Fromestano,[1] founded a church in locum quod dicunt Oveto (the place called Oveto), which was to become the city of Oviedo.
Fromestano and Maximo are considered the founders of the city and church.
Fromestano, in the charter of 781, describes its founding:[a] I, Frómista (Fromestano), abbot for the past twenty years, together with my nephew Máximo the monk, settled in this place, abandoned and uninhabited, founding a basilica in honor of Saint Vincent, a martyr of Christ and a deacon.Transformed into a monastery, the first abbot was Oveco, documented between 969 and 978.
Its cloister is an official National Historic and Artistic Monument and, since 1952, has housed the Archaeological Museum of Asturias.