"Louis Ernest of Brunswick-Lüneburg-Bevern (25 September 1718, Wolfenbüttel – 12 May 1788, Eisenach) was a field-marshal in the armies of the Holy Roman Empire and the Dutch Republic, the elected Duke of Courland (1741). From 13 November 1750 to 1766 he was the Captain-General of the Netherlands, where he was known as the Duke of Brunswick or (to distinguish him from his eldest brother Charles, who succeeded to their father´s title of Duke of Brunswick-Lüneburg) Duke of Brunswick-Wolfenbüttel. Another brother was Duke Ferdinand of Brunswick who led the Allied Anglo-German army during the Seven Years´ War." - (en.wikipedia.org 31.01.2020)
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