Queen Camilla ushered in the spring season with a vibrant Fiona Clare dress for the official Thursday farewell of Nigerian President Bola Ahmed Tinubu and First Lady Oluremi Tinubu following their state visit to the U.K.

Joining King Charles III on the steps of Windsor Castle in England, Queen Camilla turned to one of her favorite British designers. The queen consort wore a deep red and fuchsia midi dress courtesy of Fiona Clare Aldridge, a designer Queen Camilla regularly wears along with Anna Valentine.

WINDSOR, ENGLAND - MARCH 19: King Charles III and Queen Camilla bid farewell to President of Nigeria Bola Ahmed Tinubu and First Lady Oluremi Tinubu as they depart from Windsor Castle on day two of their state visit to the UK, on March 19, 2026 in Windsor, England. President Bola Tinubu and First Lady Oluremi Tinubu are conducting a historic State Visit to the United Kingdom, marking the first state visit by a Nigerian leader in 37 years and the first to be hosted at Windsor Castle. (Photo by Aaron Chown - Pool/Getty Images)

Nigerian President Bola Ahmed Tinubu, King Charles III, Nigerian First Lady Oluremi Tinubu and Queen Camilla.

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The long-sleeve dress was ideal for the occasion, as the seasons transition from winter to spring. With a vibrant tone evocative of the springtime season, Queen Camilla’s long-sleeve dress was crafted with a heavy fabric for the brisk final day of winter.

Sharp shoulders and a flowing, pleated skirt gave the dress added classic elements, while the slightly fringed neckline and front placket as well as the cuffs of the dress created textural differentiation for the overall look, a nod to modern design elements.

WINDSOR, ENGLAND - MARCH 19: King Charles III and Queen Camilla bid farewell to President of Nigeria Bola Ahmed Tinubu and First Lady Oluremi Tinubu as they depart from Windsor Castle on day two of their state visit to the UK, on March 19, 2026 in Windsor, England. President Bola Tinubu and First Lady Oluremi Tinubu are conducting a historic State Visit to the United Kingdom, marking the first state visit by a Nigerian leader in 37 years and the first to be hosted at Windsor Castle. (Photo by Aaron Chown - Pool/Getty Images)

Nigerian President Bola Ahmed Tinubu, King Charles III, Nigerian First Lady Oluremi Tinubu and Queen Camilla.

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With a few touches of black fabric round the neckline, Queen Camilla accentuated the subtle tone with sheer black tights and a pair of black heels. As for jewelry, the queen consort sported her usual Van Cleef & Arpels bracelets as well as a multiple-strand pearl necklace with coordinated earrings.

Queen Camilla and King Charles III served as hosts for the Nigerian president and first lady over the last few days, celebrating the dignitaries’ trip to the U.K. with a banquet on Wednesday night, for which Kate Middleton wore a forest green gown courtesy of Andrew Gn’s fall 2021 collection.

WINDSOR, ENGLAND - MARCH 19: King Charles III and Queen Camilla bid farewell to President of Nigeria Bola Ahmed Tinubu and First Lady Oluremi Tinubu as they depart from Windsor Castle on day two of their state visit to the UK, on March 19, 2026 in Windsor, England. President Bola Tinubu and First Lady Oluremi Tinubu are conducting a historic State Visit to the United Kingdom, marking the first state visit by a Nigerian leader in 37 years and the first to be hosted at Windsor Castle. (Photo by Aaron Chown - Pool/Getty Images)

Queen Camilla and King Charles III

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The president and first lady’s visit to the U.K. was the first time in 37 years that a Nigerian leader paid an official state visit to the country. This visit also marked the first Nigerian leader to be hosted at Windsor Castle.