The Prince and Princess of Wales attended St David's Parade in Windsor.

Kate wore a red coat and a leek-shaped brooch as a tribute to Wales.

The brooch is a replica of Queen Elizabeth II's Welsh Guards Leek Brooch and is worth £25,000.

Kate paired her coat with a red skirt, Gianvito Rossi boots, a black fascinator hat, and leather gloves.

Welsh Guards are a Light Role Infantry battalion based in Pirbright, Surrey, established in 1915 by King George V.

They have taken part in almost every British Army campaign since WWI.

After the parade, Kate and William met with the Regiment's families and a group of troops from the Fifth Royal Australian Regiment.

Kate's outfit and the brooch received attention from the media and jewellery experts.

The event was a celebration of St David's Day, the patron saint of Wales.