Ottobeuren Abbey built
764 CE.
Shown on the map at 47.941°, 10.298°.
Ottobeuren is a Benedictine abbey, located in Ottobeuren, near Memmingen in the Bavarian Allgäu, Germany. For part of its history Ottobeuren Abbey was one of the approximately 40 self-ruling imperial abbeys of the Holy Roman Empire and, as such, was a virtually independent state. At the time of its dissolution in 1802, the imperial abbey covered 266 square kilometers and had about 10,000 subjects.
Text from the Wikipedia article Ottobeuren Abbey, licensed CC BY-SA 4.0.