The Duchess of Alba hosted Prince Ranier III and Princess Grace of Monaco, as well as Jacqueline Kennedy, at the Palacio de las Dueñas in Seville in 1966, 60 years ago, during the annual Seville Fair (Feria de Abril).
Among the festivities was a colourful Flamenco Fiesta, following a traditional procession through the streets of Seville.
Mrs. Kennedy and her party joined American-born Princess Grace of Monaco and her husband Prince Rainier for a lunch of seafood and champagne and a Flamenco concert. Princess Grace wore a tradition frilly Andalusian dress, while Mrs. Kennedy wore a suit.
Prince Rainier and Princess Grace also attended several bullfights, as did Jacqueline Kennedy alongside the Duchess of Alba and the Countess of Romanones.
The highlight of the festivities was a lavish Ball held by the Duchess of Medinaceli at the Casa de Pilatos, which was also attended by leading members of the Spanish Nobility.
Princess Grace wore her Diamond Tiara and Van Cleef & Arpels Diamond Bracelet.
Jackie Kennedy was wearing her Diamond Sunburst Brooch.
Princess Esperanza of Orléans-Braganza was wearing her Diamond Necklace.
The Duchess of Alba wore her Emerald Earrings.
Bains de Mer Tiara
Diamond Tiara
Empress Joséphine’s Diamond Tiara
Princess Grace’s Ruby Tiara
Van Cleef & Arpels Diamond Tiara
Cartier Diamond Necklace
Van Cleef & Arpels Pearl Suite
Sapphire Daisy Brooch
Diamond Swag Tiara
Van Cleef & Arpels Earrings
Cartier Diamond Earrings
Diamond Flower Brooch
Cartier Bangle 
Van Cleef & Arpels Diamond Bracelet
Gold Coffee Bean Suite
Ocean Tiara
Diamond Foam Tiara
Infinite Cascade Necklace
Diamond Flowers
The Cartier Pearl Drop Tiara
Brunswick Tiara
Hanoverian Floral Tiara
Diamond Tiara
Sapphire Necklace Tiara
Diamond Fringe Necklace
Sapphire Suite
Reed Stomacher
Cartier Diamond Necklace
Bains de Mer Tiara
Gold Coffee Bean Suite
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Prince Ranier III and Princess Grace of Monaco, and Jacqueline Kennedy, were hosted by the Duchess of Alba at the Palacio de las Dueñas in Seville on this day in 1966, during the annual Seville Fair (Feria de Abril). Highlights included a Flamenco Concert, bullfights with the Duchess and the Countess of Romanones, and a Ball attended by the Prince, Princess (wearing her Diamond Tiara), and Mrs. Kennedy at the Palace De Pilatos, the Seville residence of the Duchess of Medinaceli.
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