Oldenburg Monarchy
In the 18th century the kings of Frederik IV, Christian VI, Frederik V and Christian VII ruled over a multinational empire consisting among others of the kingdoms of Denmark and Norway, the duchies of Schleswig and Holstein, until 1773 the county of Oldenburg-Delmenhorst, the countries of Iceland and the Faroe Islands as well as the colonies of Greenland, Finnmark, Danish West Indies, the Danish East Indies, primarily Tranquebar, Frederiksnagore and the Nicobar Islands as well as the slave forts of the Gold Coast or Danish Guinea.
These areas was united by their loyalty to their sovereign rather than a feeling of belonging to the same nation. This area is referred to as the Oldenburg Conglomerate State, or just Oldenburg Monarchy for short.