Vienna shares border with Lower Austria
In 976, Leopold I of Babenberg became count of the Eastern March, a district centered on the Danube on the eastern frontier of Bavaria. This initial district grew into the duchy of Austria. Each succeeding Babenberg ruler expanded the march east along the Danube, eventually encompassing Vienna and the lands immediately east. In 1145, Duke Henry II Jasomirgott moved the Babenberg family residence from Klosterneuburg in Lower Austria to Vienna. From that time, Vienna remained the center of the Babenberg dynasty.In 1440, Vienna became the resident city of the Habsburg dynasty. It eventually grew to become the de facto capital of the Holy Roman Empire (800–1806) in 1437 and a cultural center for arts and science, music and fine cuisine. Hungary occupied the city between 1485 and 1490.
In the 16th and 17th centuries, Christian forces twice stopped Ottoman armies outside Vienna, in the 1529 siege of Vienna and the 1683 Battle of Vienna. The Great Plague of Vienna ravaged the city in 1679, killing nearly a third of its population.
adjoins borders neighbors is adjacent to