In what War was Prince Christoph of Hesse accidentally killed?
Princess Christina Margarethe of Hesse Princess Christina Margarethe of Hesse (German: "Prinzessin Christina Margarethe von Hessen" ; 10 January 1933 – 22 November 2011) was the eldest daughter of Prince Christoph of Hesse and Princess Sophie of Greece and Denmark. From 1956 to 1962, she was married to Prince Andrew of Yugoslavia, with whom she had two children. Her second marriage to Robert Floris van Eyck, a Dutch artist based in London, lasted from 1962 to 1986.
Prince Leopold of Bavaria Leopold Maximilian Joseph Maria Arnulf, Prinz von Bayern (9 February 1846 – 28 September 1930) was born in Munich, the son of Prince Regent Luitpold of Bavaria (1821–1912) and his wife Archduchess Augusta of Austria (1825–1864). He was a Field Marshal ("Generalfeldmarschall") who commanded German and Austro-Hungarian forces on the Eastern Front in World War I.