Prince Philip's funeral is just days away, happening on Saturday 17th April at Windsor Castle, with only 30 mourners will be in attendance, in compliance with current Covid restrictions.
There is already a strict dress code in place, with royals wearing black and also required to wear mourning bands for any official engagements they might attend between now and then.
On the day, Queen Elizabeth II will wear a black outfit, and is likely to wear jewellery that has a special meaning for her and the late Duke of Edinburgh.
Meanwhile, it's customary for royal men of military ranking to wear their uniforms, so it was initially thought Prince Harry and Prince William wouldn't be wearing the same thing, with Harry in a suit and William in military uniform (the former lost his military titles after stepping down from duties).
It was thought Prince Andrew would be the only other male royal to not wear a uniform, as he too stepped down from official duties following the Jeffrey Epstein scandal.
Harry was said to have wanted to wear the same Blues and Royals uniform he wore on his wedding day, while Andrew wanted to wear his admiral's uniform.
Now the Daily Mail is reporting that the Queen might have banned military uniforms altogether, asking all men to wear uniforms so as to present a united front.
This would be a significant break with tradition, but a royal source said the monarch did not want anything to distract from the commemoration of Prince Philip's life.
Marie Claire Newsletter
Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!
Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.
Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).
Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at MoneySavingExpert.com, sourcing the best deals for everything from restaurants to designer sales.
However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.
Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.
The 5 biggest claims from Endgame, the explosive new royal book from Omid Scobie
It has been making a lot of headlines this week
By Lauren Hughes
Sabrina Carpenter had a hilarious justification for controversial church music video
By Iris Goldsztajn
To officially kick off the festive season, our two expert editors name these 7 beauty gifts the best of the best
Welcome to a Christmas special Beauty Desk Drop
By Shannon Lawlor