In 1804, Francis II, Holy Roman Emperor, who was also ruler of the lands of the Habsburg Monarchy, founded the Empire of Austria in which all his lands were included. In doing so he created a formal overarching structure for the Habsburg Monarchy, which had functioned as a composite monarchy for about 300 years. (Composite states/monarchies were the most common / dominant form of states in early modern era Europe.) Until the 1848 revolution, the workings of the overarching structure and the status of Hungary stayed much the same as they had been before 1804. The Kingdom of Hungary had always been considered a separate realm, the country's status was affirmed by Article X, which was added to Hungary's constitution in 1790 during the phase of the composite monarchy; it described the state as a "Regnum Independens". Hungary's affairs continued to be administered by its own institutions (King and Diet) as they had been previously. Thus, under the new arrangements, no Austrian imperial institutions were involved in its internal government. From the perspective of the Court since 1723, "regnum Hungariae" had been a hereditary province of the dynasty's three main branches on both lines. From the perspective of the "ország" (the country), Hungary was "regnum independens", a separate Land as Article X of 1790 stipulated. In 1804 Emperor Francis II assumed the title of Emperor of Austria for all the "Erblande" of the dynasty and for the other Lands, including Hungary. Thus Hungary formally became part of the Empire of Austria. The Holy Roman Empire was abolished in 1806. The Court reassured the diet, however, that the assumption of the monarch's new title (Emperor of Austria) did not in any sense affect the laws and the constitution of Hungary. The Hungarian legal system and judicial system remained separated and independent from the unified legal and judicial systems of the other Habsburg ruled areas.