READ MORE: Kate Middleton pays tribute to French designers in timeless Dior outfit as she greets Emmanuel and Brigitte Macron
The royal family was out in force today to greet France's President Emmanuel Macron and First Lady Brigitte Macron at the start of their state visit - and diplomatic dressing was clearly on the agenda.
The Macrons landed at RAF Northolt in London earlier today and were met on the tarmac by the Prince and Princess of Wales.
Later, they joined King Charles and Queen Camilla for a carriage procession at Windsor Castle.
The four senior royals were all smiles as they received the Macrons - but it wasn't just their open body language which proved they were keen to offer a particularly warm welcome to their French visitors.
Rather, their elegant outfits concealed hidden meanings which indicated the British royals' desire to reaffirm the good relations which the two nations have long shared.
Princess Kate swapped her beloved Alexander McQueen suiting for legendary French couturier Christian Dior's soft tailoring, while Queen Camilla accessorised with a brooch that belonged to Queen Elizabeth II, who was never shy about her affection for France.
Equally, King Charles appeared to have a small sprig of Catananche caerulea - a flower native to the South of France and commonly known as Cupid's Dart - pinned to his lapel.
Was the flower, which was once used in love potions, a not-so-subtle reminder to the bickering Macrons that they should also tend to their own relationship?
King Charles's suit
King Charles (pictured with Emmanuel Macron) appeared to have a small sprig of Catananche caerulea - a flower native to the South of France and commonly known as Cupid's Dart - pinned to his lapel
With the purple Catananche caerulea, was King Charles reminding the bickering Macrons to tend to their own relationship?
King Charles looked smart today as he wore a navy suit with crisp white shirt and a light blue patterned tie.
But one small detail hidden in his outfit was very different to usual - and made for a touching message of love.
The King appeared to have a small sprig of Catananche caerulea, commonly known as Cupid's Dart, pinned to his label.
The flower is native to the South of France and was commonly used by the ancient Greeks as an ingredient in love potions.
The purple petalled plant belongs to the daisy family and is widely seen as a symbol of love and romance, hence its nickname - Cupid's Dart.
The Prince and Princess of Wales seemed to be embodying this idea, as they were seen putting on a very loved-up display, with William offering his wife his hand as she walked down some steps, and the couple also exchanged loving glances.
By contrast, Brigitte Macron appeared to snub her husband as she disembarked their jet at RAF Northolt this morning, seemingly ignoring him when he offered her his hand.
Kate's Christian Dior outfit
The Princess of Wales (pictured) chose an outfit by legendary French couturier Christian Dior for the first day of the Macrons' state visit
Her elegant soft pink outfit featured a single-breasted blazer and a tulle skirt with a layer of netting
Showing her appreciation of classic French elegance, Kate wore a blush coloured outfit by French couturier Christian Dior to meet the Macrons at RAF Northolt today.
Universally considered one of the greatest couturier's of all time, Dior's peers included fellow French designers Coco Chanel and Hubert de Givenchy.
The Princess of Wales, 43, chose a soft pink, single-breasted jacket inspired by one that featured in Dior's very first collection launched in 1947.
The '30 Montaigne Rose Des Vents Bar Jacket' was recreated for the 2024 collection.
Kate paired the blazer, which cinches very slightly at the waist, with a beautiful tulle skirt in the same pale rose shade featuring a layer of netting.
The outfit was quintessentially Dior, thanks to its colourings - and made for the first time the princess has opted for the French designer.
Indeed, in 1958 Dior revealed: 'My childhood home was rendered in a very soft pink, combined with gray gravel, and these two shades have remained my favorite colors in couture.'
The future queen's decision to swap her beloved Alexander McQueen suiting for Dior's soft tailoring not only reflects her sophisticated fashion sense but also her understanding of soft diplomacy.
Princess Diana's pearl earrings
Kate accessorised her outfit with an exquisite pair of earrings which previously belonged to Princess Diana.
The Princess of Wales' late mother-in-law's pearl and diamond drop earrings by jeweller Collingwood feature a round diamond stud, as well as another diamond and a bell cap with three more rows of diamonds. Beneath the bell caps is a classic pearl drop.
Diana remains a style icon 27 years after her untimely death thanks to her natural elegance and strong sense of style.
Today, by wearing Diana's earrings, Kate not only channelled her mother-in-law’s understated glamour but also indicated the importance of familial ties and maintaining strong bonds.
This is not the first time Kate has accessorised with the Collingwood pear drop earrings.
According to The Court Jeweller, the royal mother-of-three has been wearing them since 2017, often pairing them with Queen Mary's Lover's Knot Tiara - just as Diana did.