Princess Paley was a Russian noble title, first bestowed upon Olga Karnovich, Countess von Hohenfelsen, morganatic wife of Grand Duke Paul Alexandrovich of Russia, by Nicholas II of Russia. The style of Serenity accompanies the title, which was held by all female agnates of Princess Olga. Three women have been known by this title:
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Princess Paley Wikipedia(Text) CC BY-SA