Princess Olga of Greece and Denmark  Princess Olga of Greece and Denmark (, Serbian Cyrillic: "Кнегиња Олга Карађорђевић"; 11 June 1903 – 16 October 1997) was a granddaughter of King George I of Greece and wife of Prince Paul, Regent of the Kingdom of Yugoslavia. 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. The family of Prince Nicholas was forced into exile when Olga was eleven, following the overthrow of the Greek monarchy, and later moved to Paris, whereas Olga stayed throughout Europe with her extended family, many of whom were far from rich. Brought up without wealth, Princess Olga was engaged to Prince Frederick of Denmark in 1922. However, the marriage did not take place and she married Prince Paul of Yugoslavia in Belgrade on 22 October 1923. Prince Paul and Princess Olga had issue:  On 9 October 1934, after the assassination of King Alexander I of Yugoslavia, Prince Paul was appointed regent of Yugoslavia until his cousin, Crown Prince Peter, attained his majority in September 1941. During the Second World War, on 25 March 1941, on behalf of the government led by Cvetković, Prince Paul signed the Tripartite Pact, which took Yugoslavia into the Axis with Germany and Italy, although without any commitment to fight and with guarantees of freedom of action. Two days later, leaders of the Yugoslav air force launched a sudden coup d'état against the government and Regent, declaring King Peter to be of age. Paul, Olga, and their three children were arrested and given as prisoners to the British, who deported them to Greece, where they were guests of King George II, and then on to Egypt. Meanwhile, the change of government in Yugoslavia led Hitler to bomb Belgrade and then to invade the country in April 1941. From house arrest in Cairo, Paul and his family were moved to Kenya, where they arrived on 28 April 1941. There they were guests of Lord Erroll at Osserian, but remained under surveillance. In August 1942, the accidental death of Prince George, Duke of Kent, left his widow, Princess Marina of Greece and Denmark, inconsolable, and the British government was persuaded to allow Olga to join her sister in England.