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Female Olga Click to view Olga in the family tree

Olga's father was William George I of the Hellenes Oldenburg and her mother was Olga Constantinovna.  Her paternal grandparents were Christian IX  Koenig von Daenemark and Luise von Hessen-Kassel; her maternal grandparents were Constantine Nikolaievitch von Russland and Elizabeth Alexandra von Sachsen. She had five brothers and two sisters, named Constantine I Oldenburg Koenig, George, Nicholas, Andrew Prinz, Christopher, Alexandra and Mary.

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