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.
Imperial vicar An imperial vicar ("Reichsvikar") was a prince charged with administering all or part of the Holy Roman Empire on behalf of the Emperor. Later, an imperial vicar was invariably one of two princes charged by the Golden Bull with administering the Holy Roman Empire during an interregnum.