Pippa Middleton made a stunning appearance at the coronation service of King Charles III and Queen Camilla at Westminster Abbey in London. The younger sister of Kate Middleton opted for a pastel yellow coat dress by Claire Mischevani Alais. The elegant outfit featured sleek lapels, long sleeves, and was accessorized with a matching clutch bag, dramatic hat, and light brown suede pumps with pointed toes and stiletto heels.