Ernst August (1771–1851), the duke of Cumberland, became king of Hanover in 1837 after the end of the British-Hanoverian union of crowns.
Ernst August Monument in Hanover, colour photograph of a sculpture by Albert Wolff (1814–1892), after 1856, photographer: AxelHH; image source: Wikimedia Commons, Creative Commons Attribution ShareAlike 3.0 Germany.