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In page Maria Adelaide de Bragança:

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Princess Maria Adelaide lived in Vienna, Austria, working as a nurse and social assistant. During World War II, when there were bombardments, she travelled at night to the place to provide aid to the victims. She was part of the Nazi resistance movement, and the Gestapo sentenced her to death[citation needed]. The Portuguese President of the Council of Ministers, António de Oliveira Salazar intervened with the Germans, claiming that Princess Maria Adelaide was a national heritage[citation needed]. This intervention of the Portuguese diplomacy resulted in the release and her immediate deportation, after which she settled in Switzerland. It was there that her brother Dom Duarte Nuno, Duke of Braganza lived with his wife Francisca. After the war, the family finally returned to Austria.