Venantius Fortunatus
The name is first attested in Latin sources in the 6th century AD. In the "Getica" (551), Jordanes writes that a group of Suebes near the Danube were neighbored on the east by the "Baibari". In a poem about a pilgrimage to Augsburg in 565, Venantius Fortunatus writes that the Baiovarius lived in area around the river Lech called Baiuaria.