Complex sentence: Hofburg Imperial Palace is a palace in Vienna, Austria, which has housed some of the most powerful people in Austrian history, including the Habsburg dynasty, rulers of the Austro-Hungarian empire, and currently serves as the official residence of the President of Austria.
Split into simpler sentences: Hofburg Imperial Palace is a palace in Vienna, Austria, which has housed some of the most powerful people in Austrian history, including the Habsburg dynasty, rulers of the Austro-Hungarian empire. It currently serves as the official residence of the President of Austria.