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PRINCE CHARLES & CAMILLA, DUCHESS OF CORNWALL
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She certainly knows how to make an entrance! The Queen arrives at the hotel shortly before the start of dinner – which was planned by her cousin, Lady Elizabeth Anson. "The Queen was the top of my list [to see]," said royal watcher Gwendoline Carroll. "I didn't see enough of her, but fabulous, fabulous."
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Always at his wife's side, Prince Philip waves to the many well-wishers gathered outside before entering the party.
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SULTAN & QUEEN OF BRUNEI
Sultan Hassanal Bolkiah and his first wife, Raja Isteri Pengiran Anak Hajah Saleha, work the red carpet before making their way inside.
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Serving as an escort for his youngest daughter, Prince Andrew attends the affair with Princess Eugenie (not pictured).
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Arriving shortly after her dad and sister, Princess Beatrice shows off her newly svelte form in a sparkling, one-shoulder gown.
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PRINCE FELIPE, PRINCESS LETIZIA & QUEEN SOFIA
The evening proved a family affair for Spain's monarchy, with the Prince and Princess of Asturias attending alongside Felipe's mother, Queen Sofia.
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CROWN PRINCESS VICTORIA & PRINCE DANIEL
Newlyweds Crown Princess Victoria and Prince Daniel of Sweden look every bit the lovebirds with their affectionate handhold.
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PRINCE EDWARD & SOPHIE, COUNTESS OF WESSEX
After greeting the crowd, the Queen's youngest son helps wife Sophie, who was reportedly injured in a riding accident earlier in the week, climb the stairs to the evening's festivities. The couple's daughter, Lady Louise Windsor, will serve as a bridesmaid in cousin Prince William's wedding.