On 20th October 2026, the Princess of Wales, Kate Middleton, graced the Oman state banquet at Windsor Castle, joining Prince William, King Charles, and Queen Camilla in hosting Sultan Haitham bin Tarik of Oman. The event marks a significant diplomatic gathering designed to strengthen relations between the UK and Oman, highlighting the long-standing ties between the two nations.
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For the occasion, Princess Kate opted for an elegant yellow gown designed by Elie Saab, complemented by her favourite royal tiara, Queen Mary’s Lover’s Knot. This particular headpiece has become a symbol of her royal style, frequently donned since she first wore it in 2015. Notably, it was also famously worn by Princess Diana, adding historical weight to its significance.
Tiaras have become a staple in the Princess of Wales’s wardrobe, though she typically sports them only a handful of times annually, mainly during state banquets, diplomatic receptions, and select royal weddings. Since her wedding to Prince William in April 2011, she has worn five distinct tiaras, showcasing her evolving royal style while remaining relatable to the public.
The banquet at St. George’s Hall, set in the picturesque Windsor Castle, gathered 160 invitees around an impressive 50-metre-long table. The lavish table was adorned with 480 knives, forks, and 160 spoons, creating a visually stunning setting for the evening’s festivities. In the centrepiece, a dragon candelabra dating back to 1833 added a unique touch, surrounded by pomegranates gathered from a tree planted by the late Prince Philip.
While the Sultan abstained from alcohol during the toast, the banquet respected Omani customs by serving Omani Kahwa, a traditional Arabic coffee infused with cardamom and rose water. The evening concluded with a selection of teas, including two iced varieties—Earl Grey and mint with rose water—alongside a warm cardamom-spiced tea, in keeping with British tradition.
Seating arrangements during the dinner placed the Sultan between King Charles and Princess Kate, with key Omani dignitaries seated to facilitate conversation and foster goodwill between the nations. Prince William and Queen Camilla also played significant roles in the proceedings, demonstrating the royals’ commitment to international diplomacy.
Following successful treatment for cancer in 2024 and announcing her remission the following January, Princess Kate has resumed a busy schedule of royal engagements. Her increased involvement in public duties led to her participating in three state banquets in 2025, a remarkable feat under the scrutiny of the media and public.
Bethan Holt, fashion director at The Telegraph, noted that such high-profile events bring immense pressure on the Princess to curate striking fashion statements. She remarked that this challenge forms part of the royal narrative Kate is now firmly entrenched in. Holt emphasised that while Kate’s style must always evolve, it must do so subtly, ensuring it resonates with her identity as a future queen and remains relatable to the public.
As the Princess of Wales contemplates her style evolution, it is apparent that she understands the importance of adaptability in her role. The public’s interest in her fashion choices and royal engagements is likely to continue, and Kate appears committed to navigating this path with a blend of grace, tradition, and personal touch.
This state banquet at Windsor Castle serves as a reminder of the significant traditions within the British royal family, celebrating not only the ties between nations but also the enduring legacy of royal customs. As these events unfold, the Princess of Wales continues to balance her commitments, all while leaving her mark on royal fashion and diplomacy alike.