The Royal Family were out in London on Friday, June 3 to celebrate Her Majesty The Queen's 70 years on the throne at a service of thanksgiving at St Paul's Cathedral.
The service was part of the four-day extravaganze planned to mark the Queen's Platinum Jubilee and almost the whole family was in attendance - including The Duke and Duchess of Cornwall, The Duke and Duchess of Cambridge and The Duke and Duchess of Sussex as well.
Kate Middleton 40, looked especially stunning at the event, wearing a yellow dress by Emilia Wickstead, paired with a matching yellow hat
The Duchess of Cambridge opted to wear a hat designed by Philip Treacy for the occasion, which just so happens to be one of Meghan Markle's favourite hat designers, reports OK Magazine.
Royal fans might consider this choice of headwear to be a subtle nod to her sister-in-law, as she also notably wore a Philip Treacy hat back in 2018 to Prince Harry and Meghan Markle's wedding.
The hat was again a yellow shade, but paler, almost cream in colour and had a similar floral design.
The duchess is clearly a big fan of Philip Treacy as she was recently seen wearing another of his creations at the final Royal Garden Party of the year.
This was back in May and it was a green number.
As well as the subtle nod to Meghan and Harry, Kate Middleton also appeared to pay tribute to The Queen at the thanksgiving service.
She accessorised her outfit with the Queen's pearl drop earrings, which the monarch wore in her first Royal Command portrait by Dorothy Wilding back in July 1952.
The earrings, which were crafted from pearls gifted to the Queen and Prince Philip by the ruler of Bahrain at the time of their wedding, were also worn by Princess Diana in 1982.
Her Majesty was not in attendance at the service, due to experiencing some discomfort following Trooping The Colour on Thursday, but she was said to be watching on television from Windsor Castle.
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