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King Alfonso XIII of Spain (1886 - 1941), Queen Victoria Eugenie of Spain ('Queen Ena') and Isabel, Princess of Asturias (1851 - 1931) at the Royal Palace in Madrid, circa 1925. Also present is the Spanish prime minister. (Photo by Fox Photos/Hulton Archive/Getty Images)

King Alfonso XIII of Spain (1886 - 1941), Queen Victoria Eugenie of Spain ('Queen Ena') and Isabel, Princess of Asturias (1851 - 1931) at the Royal Palace in Madrid, circa 1925. Also present is the Spanish prime minister. (Photo by Fox Photos/Hulton Archive/Getty Images)