what does Aulic Council and Hofburg have in common?
Aulic Council The Aulic Council (Latin: "Consilium Aulicum" , German: "Reichshofrat" , literally meaning Court Council of the Empire) was one of the two supreme courts of the Holy Roman Empire, the other being the Imperial Chamber Court. It had not only concurrent jurisdiction with the latter court, but in many cases exclusive jurisdiction, in all feudal processes, and in criminal affairs, over the immediate feudatories of the Emperor and in affairs which concerned the Imperial Government. The seat of the Aulic Council was at the Hofburg residence of the Habsburg emperors in Vienna.
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.