Louis IV, Grand Duke of Hesse

Louis IV Grand Duke of Hesse and by Rhine, also called Grand Duke Ludwig IV was the oldest son of Prince Charles of Hesse and by Rhine (April 23, 1809 - March 20, 1877) and Princess Elizabeth of Prussia (June 18, 1815 - March 21, 1885). He ruled from June 13, 1877 until his death on March 13, 1892.
He was related to the British Royal family both by himself and through his wife, the Imperial House of Russia and other European royal families. 
Louis married Princess Alice of the United Kingdom. She was the third child of Queen Victoria of the United Kingdom and her husband, Prince Albert. Louis and Alice had 7 children: Victoria Marchioness Milford Haven, Grand Duchess Elizabeth Feodorovna of Russia, Princess Irene of Hesse and by Rhine, Ernest Ludwig Grand Ludwig of Hesse, Prince Friedrich, (Alix of Hesse) Empress of Russia, and Princess Marie.
Grand Duke Louis died on March 13, 1892 from a heart attack.