Princess Kate turned heads at Trooping the Colour in a powder-blue Catherine Walker ensemble that echoed a look Princess Diana wore to Easter Sunday services in Windsor in 1987. Diana, also dressed by Catherine Walker, was accompanied by four-year-old Prince William – who coordinated with his mom in an adorable pale blue coat – and his older cousin, Peter Phillips. Some royal style moments truly stand the test of time! 👑 📸: Getty Images #katemiddleton #princessdiana