Princess Helena of Waldeck and Pyrmont (1899–1948)
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Princess Helena of Waldeck and Pyrmont was the only daughter of Friedrich, Prince of Waldeck and Pyrmont, last reigning Prince of Waldeck and Pyrmont, and wife of Nikolaus, Hereditary Grand Duke of Oldenburg.
Princess Helena of Waldeck and Pyrmont (1899–1948)
Friedrich, Prince of Waldeck and Pyrmont
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Friedrich, Prince of Waldeck and Pyrmont was the last reigning Prince of Waldeck and Pyrmont from 12 May 1893 to 13 November 1918.
Friedrich, Prince of Waldeck and Pyrmont