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.
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.