Double region in Italy with a total of 15,500 hectares of vineyards. Since 1972 it has been divided into the two autonomous provinces of Trento (German: Trento) and Bozen (Italian: Bolzano). In terms of viticulture, they are viewed as separate regions. The predominantly Italian-speaking province of Trento with the capital of the same name (also capital of the entire region) is the southern part and corresponds to the area Trentino with around 10,000 hectares of vineyards. The predominantly German-speaking province of Bozen (Bolzano) with the capital of the same name is the northern part and corresponds to the area South-Tirol (Italian: Alto Adige = Hoch Etsch) with around 5,500 hectares of vineyards.
You have a completely different story. The northern part was part of over 600 years Austria and was awarded to Italy in 1919 after the First World War (1914-1918). The boundary between the two parts is the Salurner Klause, that is the narrow valley section of the Adige (Adige) near Salurn (Salerno) south of Bozen (Bolzano). Today, the areas of both grape varieties and wines have many similarities. The region has the highest Italian DOC standard because DOC wines account for around 80% of production. In both parts, the vines are traditionally still very common pergolas (Wooden scaffolding).