Kate Middleton, the Princess of Wales, smiles as she greets their guests on the Windsor Estate, in Windsor, on September 17, 2025, at the start of a second State Visit of US President Donald Trump AARON CHOWN/Getty ImagesThe royal family have welcomed President Trump to Windsor Castle for his historic second state visit, with both the Princess of Wales and Queen Camilla opting for highly poignant brooches for the occasion. Kate Middleton adorned her monochrome burgundy look with an heirloom brooch featuring Prince of Wales Feathers, in recognition of her title and position within the Royal Family. The brooch features a diamond-encrusted Prince of Wales feathers emblem encircled with more diamonds, and emeralds and rubies dotted throughout, royal authority The Court Jeweller notes. The Princess chose not to wear the additional single emerald drop for the outing.