The Royal Family gathered at Westminster Abbey today for a Service of Thanksgiving for the life of Prince Philip, Duke of Edinburgh.
The Duke and Duchess of Cambridge were accompanied by their two eldest children, Prince George and Princess Charlotte.
The Duchess debuted a black Alessandra Rich Pleated Polka-Dot Midi Dress (£1,665) featuring a high neckline, puffed mutton sleeves and a drop-waist pleated skirt.
Kate's new hat appears to be a custom version of Lock & Co's 'Mayer' Boater (£775). The Duchess opted for a contrasting satin band and feather trim.
Kate carried her Russell & Bromley 'Curvy' Clutch Bag in Taupe Suede, and black Cornellia James 'Alice' gloves.
On her feet were her Gianvito Rossi 105 pumps in black suede.
The Duchess topped off the outfit with Princess Diana's Collingwood pearl and diamond earrings.
SHOP KATE'S CLOSET