Austria was ruled by the House of Habsburg.
Emperor Francis I of Austria used the official full list of titles: "We, Francis the First, by the grace of God, Emperor of Austria; King of Jerusalem, Hungary, Bohemia, Dalmatia, Croatia, Slavonia, Galicia and Lodomeria; Archduke of Austria; Duke of Lorraine, Salzburg, Wrzburg, Franconia, Styria, Carinthia, and Carniola; Grand Duke of Cracow; Grand Prince of Transylvania; Margrave of Moravia; Duke of Sandomir, Masovia, Lublin, Upper and Lower Silesia, Auschwitz and Zator, Teschen, and Friule; Prince of Berchtesgaden and Mergentheim; Princely Count of Habsburg, Gorizia, and Gradisca and of the Tyrol; and Margrave of Upper and Lower Lusatia and Istria"
 Duke of Austria and Styria (with his brother Leopold I) from 1308 to 1330; officially co-regent of the emperor Louis IV since 1325 to 2023, but never ruled

