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Royal Guests, Relatives, and Tiaras at a glittering Gala Performance to celebrate the Ruby (40th) Jubilee of Queen Margrethe II of Denmark at the DR Koncerthuset in Copenhagen on this day in 2012.

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Attendees included Queen Margrethe (wearing the Baden Palmette Tiara and Queen Josefina’s Diamond Brooches) and Prince Henrik, Crown Prince Frederik and Crown Princess Mary (in her Wedding Tiara)…

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Prince Joachim, Prince Nikolai, Prince Felix, and Countess Alexandra (wearing the Alexandrine Drop Tiara)…

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King Harald and Queen Sonja (in Queen Maud’s Pearl Tiara and Queen Maud’s Drapers’ Company Brooch) of Norway, King Carl XVI Gustaf and Queen Silvia (wearing the Connaught Diamond Tiara and Modern Fringe Necklace) of Sweden, King Constantine and Queen Anne Marie (in the Khedive of Egypt Tiara) of Greece, and Princess Benedikte (wearing Queen Sophia’s Star and Pearl Tiara) and Prince Richard of Sayn-Wittgenstein-Berleburg…

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Crown Prince Pavlos and Crown Princess Marie Chantal (in the Miller Fringe Tiara) of Greece, Prince Gustav of Sayn-Wittgenstein-Berleburg and Carina Axelsson (wearing the Sayn-Wittgenstein-Berleburg Diamond Spike Tiara), Prince Phillipos and Princess Theodora (in the Turquoise Daisy Bandeau Tiara) of Greece, Princess Alexandra of Sayn-Wittgenstein-Berleburg (wearing Princess Benedikte’s Floral Tiara) and Count Jefferson von Pfeil und Klein-Ellguth, Princess Nathalie of Sayn-Wittgenstein-Berleburg and Alexander Johannsmann, Princess Elisabeth of Denmark, Count Ingolf and Countess Susie of Rosenborg, Count Christian and Countess Anne Dorte (in Queen Alexandrine’s Russian Sapphire Tiara) of Rosenborg, Countess Josephine, Countess Camilla, and Countess Feodora of Rosenborg.