Kate Middleton took the time to honor Ukraine in her attire at the Commonwealth Day Service at Westminster Abbey in London. Kate was joined by her husband, Prince William, father-in-law, Prince Charles, and his wife, Camilla, the Duchess of Cornwall, at the service. Queen Elizabeth II was not in attendance. The 40-year-old Duchess of Cambridge dazzled in a stunning royal blue Catherine Walker coat and matching Sean Barratt hat for the occasion.