Kate Middleton and Prince William were beaming as they met US President Donald Trump and First Lady Melania Trump upon their arrival at the grounds of Windsor Castle, in Windsor, on September 17, 2025 AARON CHOWN/Getty ImagesKate Middleton and Prince William were beaming as they welcomed President Trump and Melania Trump to Windsor Castle to begin the state visit. Catherine was elegant in a burgundy Emilia Wickstead coat dress, shaking hands with President Trump and Melania. She opted to wear matching accessories with a chic fascinator, and swept her hair into elegant waves, which cascaded down her back. The King and Queen formally welcomed the President and First Lady outside, as aRoyal Salute was fired from the East Lawn of Windsor Castle and at the Tower of London. Thereafter, the President and First Lady joined the King and Queen, and Prince William and Kate Middleton, in a Carriage Procession through the Windsor estate, towards the Castle.