in the Dannenberg, Harburg, Gifhorn, Bevern, Osterode, Herzberg, Salzderhelden and Einbeck. While a total of about a dozen subdivisions that existed, some were only dynastic and not recognised as states of the Empire, which at one time had over 1500 such legally recognized entities. In the List of Reichstag participants (1792), the following four subdivisions of Brunswick-Lüneburg had recognized representation: The Principality of Lüneburg. The Principality of Calenberg-Göttingen, merged under Eric I of Brunswick-Wolfenbüttel in 1495. The Principality of Grubenhagen. The Principality of Brunswick-Wolfenbüttel. By 1705 only two Dukes of Brunswick-Lüneburg survived, one ruling Calenberg, Lüneburg and other possessions, and the other ruling Wolfenbüttel. From Lüneburg to Hanover One of the dynastic lines was that of the princes of Lüneburg, who in 1635 acquired Calenberg for George, a junior member of the family who set up residence in the city of Hanover. His son Christian Louis and his brothers inherited Celle in 1648 and thereafter shared it and Calenberg between themselves; a closely related branch of the family ruled separately in Wolfenbüttel. As a latter day development, what became the Electorate of Hanover was initially called the Elector of Brunswick-Lunenberg when the Holy Roman Emperor appointed Ernest Augustus, Duke of Brunswick-Lunenberg an Elector in 1696 (two years before his death) in a somewhat controversial move to increase the number of Protestant electors—thereby offending the entrenched interests of the extant prince-electors who would no longer be so few. As with most matters in Europe during these times, this was part of the centuries-long religious unrest accompanied by outright warfare (see Thirty Years' War) triggered by the zealous advocates on either side of the Protestant Reformation and the Catholic Counter-Reformation. The territories of Calenberg and Lüneburg-Celle were made an Electorate by the Emperor Leopold I in 1692 in expectation of the imminent inheritance of Celle by the Duke of Calenberg, though the actual dynastic union of the territories did not occur until 1705 under his son George I Louis, and the Electorate was not officially approved by the Imperial Diet until 1708. The resulting state was known under many different names (Brunswick-Lüneburg, Calenberg, Calenberg-Celle; its ruler was often known as the "Elector of Hanover". Coincidentally, in 1701 the Duke of Brunswick-Lüneburg found himself in the line of succession for the British crown, later confirmed in 1707 by the Act of Union, which he subsequently inherited, thereby creating a personal union of the