Question: Princess Christina Margarethe of Hesse, was the eldest daughter of Prince Christoph of Hesse, was the fifth son of Prince Frederick Charles of Hesse and Princess Margaret of Prussia, he was a German SS officer killed accidentally, during which historic event?
Sentence (from "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.
Relevant evidence: Yes