The Princess of Wales attended a State Banquet at Windsor Castle in honour of the French President Emmanuel Macron and his wife Brigitte’s State Visit to the UK on Tuesday (9 July). For the formal occasion, the Royal Family were in full regalia and the Princess of Wales turned to one of Princess Diana’s favourite and most-worn tiaras.

Kate wore the Lover’s Knot tiara, which was worn on many occasions by the late Princess Diana, who was the previous Princess of Wales. The diamond tiara is hung with pearl droplets and originally belonged to Queen Mary, Queen Elizabeth II’s grandmother. Kate also wore the dramatic Greville Chandelier Earrings, which belonged to the late Queen, whose mother inherited them from her friend, Dame Margaret Greville.

windsor, england july 08: prince william, prince of wales and catherine, princess of wales attend the state banquet at windsor castle on july 08, 2025 in windsor, england. president emmanuel macron and mrs brigitte macron visit the uk in the first visit state visit made by france in 17 years. they are staying at windsor castle, hosted by king charles iii and queen camilla, and a banquet will be held there in their honour. the macrons will visit imperial college, and the president will address parliament during his stay. (photo by chris jackson/getty images)
Chris Jackson

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washington, united states november 11: diana, princess of wales, talking to her husband, during a visit to the british embassy. the princess is wearing a taffeta and lace gown with a scalloped neckline designed by murray arbeid with queen marys diamond and pearl tiara, a present from the queen. (photo by tim graham photo library via getty images)
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Princess Diana in the Lover’s Knot tiara.
queen elizabeth ii, sweden, queen elizabeth ll attends the state banquet given in her honour by king carl xvl gustaf and queen silvia of sweden in stockholm, sweden, queen elizabeth wears the girls of great britain and ireland tiara, the greville chandelier earrings, the george vi festoon necklace and the true lovers knot brooch, queen silvia wears the massive braganza tiara, 25th may 1983. (photo by john shelley collection/avalon/getty images)
John Shelley Collection/Avalon
Queen Elizabeth II in the Greville Chandelier Earrings.

There was also an interesting connection behind the Princess of Wales’ floor-length, cape-style gown, which ties to her relationship with Prince William. The dress was specially made for Kate by Sarah Burton at Givenchy, who also designed Kate’s wedding dress when she was at Alexander McQueen.

The Prince of Wales was also dressed in full finery for the occasion, which included wearing his medals. The couple joined the King and Queen, Duke and Duchess of Edinburgh, Princess Anne and other members of the Royal Family at the gala, and Kate was seen chatting to President Macron during the dinner.

frances president emmanuel macron (c) makes a toast with britains catherine, princess of wales (c l) during a state banquet at windsor castle, west of london, on july 8, 2025, on the first day of a three day state visit of french president to britain. french president emmanuel macron began a three day state visit to britain on tuesday, which saw him address parliament and try to rekindle a purportedly warm relationship with king charles iii. (photo by ludovic marin / pool / afp) (photo by ludovic marin/pool/afp via getty images)
LUDOVIC MARIN

The State Visit is the first made by France for 17 years, and marked the end of the first of their three days in the UK. Earlier that day, the Prince and Princess of Wales were there to greet President Macron and Brigitte as they disembarked their plane. The group then joined a procession of carriages with The King and Queen through Windsor towards the castle.