James Middleton, the brother of Kate Middleton, the Princess of Wales, is no stranger to showing support for his sister, whether on social media or in interviews. Recently, James took to Instagram to share his thoughts on Kate’s high-profile appearance at a state banquet in honor of President Donald Trump and First Lady Melania Trump during their state visit to the U.K. on September 17, 2025. James, 38, proudly commented on a photo of Kate and her husband, Prince William, posted on the official Instagram account of the Prince and Princess of Wales. “Proud to be 🇬🇧,” he wrote, expressing his admiration for the royal outing.

The post, captioned “Ready for The State Banquet” and accompanied by British and American flag emojis, showcased Kate in a stunning couture gown by British designer Phillipa Lepley. The outfit featured a full-length, hand-embroidered gold Chantilly lace evening coat over a silk crepe gown, exuding both elegance and regal grace. Kate accessorized with the iconic Queen Mary’s Lover’s Knot Tiara, a piece she’s frequently worn throughout her royal duties. Additionally, she wore earrings once belonging to the late Queen Elizabeth and adorned herself with the Royal Family Order of King Charles III, the Royal Family Order of Elizabeth II, and the Grand Cross of the Royal Victorian Order star and sash. The entire ensemble emphasized Kate’s position as a key member of the royal family.
James’s supportive comment comes at a time when the Middleton family has been in the spotlight for their unwavering support of Kate. Over the years, James has consistently shared his pride and admiration for his sister, from family trips to personal messages of encouragement. This particular comment on social media highlights a continuing bond between siblings, reinforcing the warmth and support that exists behind the public personas of Kate and her family.
In the past, James has also opened up about their childhood memories. Over the summer, he shared a photo from a family trip to France with his wife, Alizee, which subtly referenced his active, sporty childhood with older sisters Kate and Pippa. Kate herself has fondly shared memories of their family trips to the Lake District in the U.K., where they would enjoy outdoor activities like “boulder hopping” in the streams, offering a glimpse into their close-knit family life.

James has also shown immense support for Kate during challenging times. When Kate publicly revealed her cancer diagnosis in an emotional video message on March 22, 2024, James posted a heartfelt message on social media, writing, “Over the years, we have climbed many mountains together. As a family, we will climb this one with you too,” alongside a nostalgic childhood photo of the two siblings standing outdoors together. His post emphasized the strength of their bond and his commitment to supporting her through difficult moments.
James has spoken candidly in interviews about how the Middleton family has rallied around Kate during tough times. In May 2024, during an interview with The Times, he described how the family came together during Kate’s challenging period. He noted, “What I think is that, as a family, you learn to see and process and understand things. For her and her family, it was a challenging time, and I know for us and our bigger family, it was a challenging time, but I think it’s about communication and it’s about offering support and help where you can.” James’s words underscored the Middleton family’s deep sense of unity and their commitment to standing by each other in both joyful and difficult times.

The relationship between James and Kate Middleton is a testament to the power of family and the unbreakable bonds that hold them together. While Kate’s public life as the Princess of Wales often takes center stage, James’s quiet but constant support behind the scenes is a reminder of the importance of family in navigating the challenges that come with royal duties and public life.
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