Giovanna of Savoy (, Ioanna Savoiska, ) (13 November 1907 – 26 February 2000) was an Italian princess of the House of Savoy who later became the Tsaritsa of Bulgaria by marriage to Boris III of Bulgaria. Early life Giovanna was born in Rome, the third daughter and the fourth of five children of King Victor Emmanuel III of Italy and Queen Elena, former Princess of Montenegro. Upon her Roman Catholic christening, she was given the names Giovanna Elisabetta Antonia Romana Maria. Her older brother was the future (and last) Italian king Umberto II of Italy. Tsaritsa of Bulgaria Giovanna married Tsar Boris III of Bulgaria in the Basilica of St Francis of Assisi, Assisi in October 1930, in a Roman Catholic ceremony, attended by Italian dictator Benito Mussolini. Bulgarians deemed her a good match, partly because her mother, Elena of Montenegro, was of Slavic ethnicity. At a second ceremony in Sofia, Giovanna (who herself was daughter of a Roman Catholic father and a formerly Orthodox mother) was married in an Eastern Orthodox Church ceremony, bringing her into conflict with the Roman Catholic Church. Giovanna adopted the Bulgarian version of her name, Ioanna. Giovanna knew the Pope's Apostolic Visitor to Bulgaria, Archbishop Angelo Roncalli, the future Pope John XXIII who was able to help her. She and Boris had two children: Marie Louise of Bulgaria, born in January 1933, and then the future Simeon II of Bulgaria in 1937. In the years prior to World War II, Tsaritsa Ioanna became heavily involved in charities, including the financing of a children's hospital. During the war she counterbalanced her husband consigning Bulgaria to the Axis by obtaining transit visas to enable a number of Jews to escape to Argentina. Tsar Boris also proved less malleable than Hitler had hoped, and following a meeting in Berlin in August 1943, the Tsar became seriously ill and died, aged 49. Stress and a heart condition were the official reasons for his death. Ioanna's son, Simeon, became the new tsar and a regency was established, led by his uncle Prince Kyril, who was considered more pliable by the Germans. In the dying days of the Second World War, Bulgaria was occupied by the Soviet Union. Prince Kyril was tried by a People's Court and subsequently executed. Giovanna and her son Simeon remained under house arrest at Vrana Palace, near Sofia, until 15 September 1946, when the