Lady Louise Windsor has graduated from the University of St Andrews with a degree in English and international relations.
Her parents, the Duke and Duchess of Edinburgh, were present in Fife to witness the ceremony.
The 22-year-old, 17th in line to the throne, was photographed in her academic gown after completing her four-year course.
The royal family extended their congratulations via an official social media post, stating: "Congratulations to Lady Louise on her graduation from St Andrews University!"
The granddaughter of the late Queen is now set to embark on a gap year, intending to combine work, volunteering, and travel before exploring her future career paths.
Later this week, she will receive her Duke of Edinburgh’s gold award from her father, Edward, at a special event at the Palace of Holyroodhouse in Edinburgh.
The moment is said to be a particularly special one for Lady Louise, falling in the 70th anniversary year of the award being founded by her late grandfather Prince Philip, and 40 years since her father became involved in supporting in the youth adventure scheme.
Lady Louise Alice Elizabeth Mary Mountbatten-Windsor was born prematurely in November 2003, weighing just 4lb 9oz.
Her mother, Sophie, was rushed to hospital at eight months’ pregnant with severe internal pains and doctors found she was dangerously ill from blood loss, and performed an emergency Caesarean.
Newborn Louise was transferred to St George’s Hospital in Tooting, London, for specialist care while the duchess remained at Frimley Park Hospital near their Bagshot Park home. They were separated for six days.
The late Prince Philip taught his grand-daughter how to drive a carriage and she has often been seen competing in the sport at the annual Royal Windsor Horse Show.
When she was born, Lady Louise, as the daughter of the son of the then-sovereign Queen Elizabeth II, was entitled to be known as HRH Princess Louise.
But Edward and Sophie decided against this, choosing the courtesy titles of a child of an earl for their daughter and son instead.
Louise and her 18-year-old younger brother James – whose title is the Earl of Wessex – are expected to pursue their own careers rather than undertaking official royal duties, and have not switched to using HRH styles in adulthood.
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