Hofburg Palace is the former imperial palace in the centre of Vienna. Part of the palace forms the official residence and workplace of the President of Austria. Built in the 13th century and expanded in the centuries since, the palace has housed some of the most powerful people in European and Austrian history, including monarchs of the Habsburg dynasty, rulers of the Austro-Hungarian Empire. It was the principal imperial winter residence, as Schönbrunn Palace was their summer residence.
The Hofburg area has been the documented seat of government since 1279 for various empires and republics. The Hofburg has been expanded over the centuries to include various residences (with the Amalienburg), the Imperial Chapel (Hofkapelle or Burgkapelle), the Naturhistorisches Museum and Kunsthistorisches Museum, the Austrian National Library (Hofbibliothek), the Imperial Treasury (Schatzkammer), the Burgtheater, the Spanish Riding School (Hofreitschule), the Imperial Horse Stables (Stallburg and Hofstallungen), and the Hofburg Congress Center.
The Hofburg faces the Heldenplatz ordered under the reign of Emperor Francis Joseph, as part of what was to become a Kaiserforum that was never completed.
Numerous architects have executed work at the Hofburg as it expanded, notably the Italian architect-engineer Filiberto Luchese (the Leopoldischiner Trakt), Lodovico Burnacini and Martino and Domenico Carlone, the Baroque architects Lukas von Hildebrandt and Joseph Emanuel Fischer von Erlach (the Reichschancelry Wing and the Winter Riding School), Johann Fischer von Erlach (the library), and the architects of the grandiose Neue Burg built between 1881 and 1913.