The growing region lies on the northern edge of the state of Bavaria in Germany and is crossed by the Main river in a large W-shape. A special feature is that the Bavarian vineyards on Lake Constance around Lindau belong to the Württemberg growing region. The vineyards cover 6,130 hectares, most of which stretch between Aschaffenburg and Schweinfurt. All are planted on south-facing valley slopes on the banks of the Main River or in side valleys of its tributaries. It is an ancient wine-growing region, as evidenced by a deed of gift from 777 to the Fulda monastery, to which the royal estate of Hammelburg with eight vineyards (Schloss Saaleck with Schlossberg) was assigned. Emperor Charlemagne (742-814) documented a description of the area between Randersacker and Würzburg on 14 October 779.