"Louis IV (German: Ludwig IV; 12 September 1837 – 13 March 1892) was the Grand Duke of Hesse and by Rhine from 13 June 1877 until his death in 1892. Through his own and his children's marriages he was connected to the British Royal Family, to the Imperial House of Russia and to other reigning dynasties of Europe." - (en.wikipedia.org 24.12.2021)
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