"Princess Alexandrine Irene of Prussia (7 April 1915 – 2 October 1980) was the youngest daughter and fifth child of Wilhelm, German Crown Prince, and Cecilie of Mecklenburg-Schwerin. Her grandparents were Wilhelm II, German Emperor and his wife Augusta Victoria of Schleswig-Holstein, and Frederick Francis III of Mecklenburg-Schwerin and Grand Duchess Anastasia Mikhailovna of Russia. Alexandrine was a member of the House of Hohenzollern." - (en.wikipedia.org 02.10.2020)
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