Which city, previously the Roman town of Vindobona, became the capital of the Duchy of Austria in 1156 and the capital of Hapsburg power base in the 13th century?
Vindobona Vindobona Vindobona (from Gaulish "windo-" "white" and "bona" "base/bottom") was a Roman military camp on the site of the modern city of Vienna in Austria. The settlement area took on a new name in the 13th century, being changed to Berghof, or now simply known as "Alter Berghof" (the Old Berghof). Around 15 BC, the kingdom of Noricum was included in the Roman Empire. Henceforth, the Danube marked the border of the empire, and the Romans built fortifications and settlements on the banks of the Danube, including Vindobona with an estimated population of 15,000 to 20,000. Early references to Vindobona
Duchy of Austria bore the archducal title. Only two non-Habsburgs reigned the Empire between 1438 and 1806, when Emperor Francis II resigned. Duchy of Austria The Duchy of Austria () was a medieval principality of the Holy Roman Empire, established in 1156 by the "Privilegium Minus", when the Margraviate of Austria ("Ostarrîchi") was detached from Bavaria and elevated to a duchy in its own right. After the ruling dukes of the House of Babenberg became extinct in male line, there was as much as three decades of rivalry on inheritance and rulership (parts of this period are sometimes called as first War on