Fans of the Prince and Princess of Wales have been pouring over each and every detail of a video posted to social media yesterday (9 September) - and have noticed .
The royal couple William and Kate released a sweet video, which was filmed by Will Warr, of the entire family enjoying the outdoors.
Joining their parents were the children Prince George, 11, Princess Charlotte, nine, and Prince Louis, six.
The video was shared to accompany the announcement that Princess of Wales has finished her chemotherapy treatment and is now cancer free.
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Eagle eyed viewers on social media have been quick to spot a few key details, however.
One such detail is that everyone is wearing blue.
However, it's a deliberate choice, according to Elizabeth Holmes, author of New York Times bestseller, 'HRH: So Many Thoughts on Royal Style'.
She told Vogue that the royals are 'always very aware of the message their clothing sends' - and the colour blue is Kate's signature look, Elizabeth added.
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And now, social media users have noticed another specific - and rather sweet - detail.
In one frame, Prince Louis holds out his hand to grab onto Kate's arm.
One user wrote on X: "The way Louis move his hand towards his Mom’s hand."
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Another user replied: "You can also see George's hand move from behind his sister up, probably to touch his mom's back at the same time. In sync brothers. Lovely family."
While a third added: "The future is bright for the monarchy."
Kate captioned the moving video: "As the summer comes to an end, I cannot tell you what a relief it is to have finally completed my chemotherapy treatment.
"The last nine months have been incredibly tough for us as a family. Life as you know it can change in an instant and we have had to find a way to navigate the stormy waters and road unknown.
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"The cancer journey is complex, scary and unpredictable for everyone, especially those closest to you. With humility, it also brings you face to face with your own vulnerabilities in a way you have never considered before, and with that, a new perspective on everything.
"This time has above all reminded William and me to reflect and be grateful for the simple yet important things in life, which so many of us often take for granted. Of simply loving and being loved.
"Doing what I can to stay cancer free is now my focus. Although I have finished chemotherapy, my path to healing and full recovery is long and I must continue to take each day as it comes."
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She continued: "I am however looking forward to being back at work and undertaking a few more public engagements in the coming months when I can.
"Despite all that has gone before I enter this new phase of recovery with a renewed sense of hope and appreciation of life.
"William and I are so grateful for the support we have received and have drawn great strength from all those who are helping us at this time. Everyone’s kindness, empathy and compassion has been truly humbling.
"To all those who are continuing their own cancer journey – I remain with you, side by side, hand in hand. Out of darkness, can come light so let that light shine bright."
Topics: News, UK News, Royal Family, Kate Middleton, Prince William