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The monastery, dedicated to Saints Peter and Paul, was founded in the late 8th century by Duke Tassilo III of Bavaria - the last of the Agilolfings, who was deposed by Charlemagne in 788.
The monastery was founded in about 753, and dedicated to Saint Peter, according to legend after Duke Tassilo III of Bavaria while hunting nearby had a vision of three springs, which his servant Wezzo duly discovered the next day.