A very young King Charles and Princess Anne could be seen sharing a sweet interaction in a new message shared by Buckingham Palace.
The Palace shared the heartwarming snap ahead of a major milestone for the Prince Royal.
Princess Anne will be celebrating her 75th birthday on August 15.
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The Royal Family has been gradually building up to the big day with social media posts commemorating Anne’s long career in royal service.
A very young King Charles and Princess Anne were seen sharing a sweet moment in a new birthday post from Buckingham Palace
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“Happy memories ahead of The Princess’s 75th birthday tomorrow,” the Firm shared on social media.
Along with the sweet post was a video compilation of the Princess Royal’s life.
The film begins showing King Charles and Anne as very young children, with the future King being seen alongside his baby sister during her christening in 1950.
In the clip, an infant Anne was being cradled by her mother, the late Queen Elizabeth II, while an inquisitive Charles investigates.
The post celebrated the life long bond between Anne and her older brother
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Later, the pair could be seen as toddlers on the deck of HMY Britannia with their father, Prince Philip.
Referencing Anne’s love of horses, the montage showed footage of the Princess watching an equestrian event in awe.
Anne could also be seen frolicking in the gardens of Balmoral Castle with her Charles, Philip and two dogs.
The heartwarming video concluded on Anne and Charles leading horses through a gate and Philp and the late Queen watch on.
The latest post comes just days after The Royal Family's previous birthday message to Princess Anne.
"As we celebrate The Princess Royal turning 75 this week, swipe to find out more about the life and work of Her Royal Highness," the message read on social media.
The post featured a collection of photos of Anne alongside facts about her royal career.
It celebrated her role as a constant supporter of Charles as both Prince of Wales and King.
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It also documented her successful career as a horsewoman, competing at 1976 Olympics.
Anne's role as the undisputed hardest working royal was also praised by the Royal Family.
Buckingham Palace have also released a new photograph of Princess Anne and her husband, Sir Timothy Laurence.