Princess Olga of Greece and Denmark was the granddaughter of King George I of Greece and wife of Paul, Prince Regent of Yugoslavia.
Background
Princess Olga was born in Athens, Greece, on 11 June 1903. Her father was Prince Nicholas of Greece and Denmark, the third son of George I of Greece. Her mother was Grand Duchess Elena Vladimirovna of Russia, a granddaughter of Tsar Alexander II of Russia.
Career
The family was generally poor and forced into exile when she was 11, following the overthrow of the Greek monarchy. The family later moved to Paris, whereas the Princess stayed throughout Europe with her extended family. Brought up in relative poverty, Princess Olga was engaged to Prince Frederick of Denmark in 1922.
Titles and styles 11 June 1903 – 22 October 1923: Her Royal Highness Princess Olga of Greece and Denmark 22 October 1923 – 16 October 1997: Her Royal Highness Princess Olga Karađorđević* (in Yugoslavia) 22 October 1923 – January 1929: Her Royal Highness Princess Olga of Serbia (internationally) January 1929 – 16 October 1997: Her Royal Highness Princess Olga of Yugoslavia (internationally) A new House Law, approved in April 1930, extended the right to the style of Royal Highness to the junior line as well.