what does Aulic Council and Hofburg have in common?
Hofburg The Hofburg is the former imperial palace in the centre of Vienna, Austria. Built in the 13th century and expanded in the centuries since, the palace has been the seat of power of the Habsburg dynasty rulers, and today the official residence and workplace of the President of Austria. It was the principal imperial winter residence, as Schönbrunn Palace was the summer residence.
Austrian National Library The Austrian National Library (German: Österreichische Nationalbibliothek , abbreviated ÖNB) is the largest library in Austria, with 7.4 million items in its various collections. The library is located in the Hofburg Palace in Vienna. Since 2005, some of the collections have been relocated within the baroque structure of the Palais Mollard-Clary. Founded by the Habsburgs, the library was originally called the Hof-Bibliothek ("Imperial Library"); the change to the current name occurred in 1920. The library complex includes four museums, as well as multiple special collections and archives.