The Royal Box at Wimbledon adheres to a specific style etiquette, and guests are mindful of not violating these unspoken rules. Ceril Campbell, a former royal and celebrity stylist and author, has shed light on the fashion expectations for those attending events in this exclusive setting.

Campbell noted that there is a surprising and little-known aspect to dressing for the Royal Box, which she suggests contributes to the 'secret dress code' that the Princess of Wales reportedly follows for the tournament. "The British social season has a certain style etiquette that is appropriate to each event - and the Royal Box at Wimbledon is one setting where noone wants to get it wrong," Campbell stated.

Further details regarding these specific style rules are expected to be shared in the Palace Confidential newsletter. The publication aims to provide expert commentary, photography, and analysis on the monarchy, covering members of the Royal Family and the inner workings of the institution.