Prince Bertil of Sweden (Bertil Gustaf Oskar Carl Eugén, 28 February 1912 – 5 January 1997), Duke of Halland, was the third son of King Gustaf VI Adolf of Sweden and his first wife, Princess Margaret of Connaught. He was a paternal uncle of King Carl XVI Gustaf of Sweden and a maternal uncle of Queen Margrethe II of Denmark and Queen Anne-Marie of Greece.
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