1/21 Kate's dress that turned William's head
This is the see-through dress worn by Kate Middleton during a charity fashion show at St Andrews University in 2002, which is said to have caught William's eye. It was auctioned off in 2011. (Ben Stansall/AFP via Getty Images)
2/21 First day nerves
Prince William took time to shake hands with well-wishers as crowds gathered when he arrived at St. Andrews University ahead of his course.
3/21 Prince William the student
Prince William on the pier at St Andrews, with the castle in the background, at the two year point int his four year History of Art degree. He later switched to geography.
4/21 Out shopping
Prince William had to shop like any other student, shown here browsing through the magazine rack in the Good News newsagents in St Andrews. (Anwar Hussein/allactiondigital.com)
5/21 Enjoying some down time
Prince William catching a rugby ball on the beach at St Andrews. He and Kate will return to the beach during their week-long tour as they revisit their student days. (PA Images)
6/21 Hitting the books
Prince William studying in the main university library in the last year of his four-year course. (PA Photo: David Cheskin)
7/21 Dorm life
Room B21 at St Salvator's Hall at St Andrews University, a room similar to that which was offered to William when he got to university in 2001. (PA Images)
8/21 Final year
William playing pool with friends at a bar in St Andrews during his final year. He lived with Kate during a lot of his time there. (PA Images)
9/21 The prince at play
William was afforded a lot of privacy during his degree, but the cameras captured some of his student life. (PA Photo: David Cheskin)
10/21 Before working royal life
At this stage in 2004, William wasn't carrying out royal duties at the level he does today. (PA Photo: David Cheskin)
11/21 Surfing prince
Prince William surfing at St Andrews in Scotland in 2004, during the last year of his university course. (PA Images)
12/21 Catching a wave
The prince has always been sporty and enjoyed surfing while he was close to the Scottish beaches. He also plays polo. (PA Images)
13/21 In the library
The prince had started off studying History of Art but decided it wasn't for him. Kate encouraged him to swap courses. (PA Photo: David Cheskin)
14/21 William's choice
Going to Scotland was something of a break from royal tradition, as his father, Prince Charles, had gone to the University of Cambridge. (PA Photo: David Cheskin)
15/21 Graduation day
Catherine Middleton and Prince William on their graduation day, St. Andrews University in June 2005. (Middleton Family)
16/21 Kate graduates
Then-Kate Middleton, then-girlfriend of Prince William, during their graduation ceremony. Kate graduated in Art History and has pursued her love of photography through her royal work. (PA Images)
17/21 Charles and Camilla at William's graduation
Prince William waves as he leaves the St Salvator's Quadrangle with the Duke and Duchess of Rothesay, as they are known in Scotland, beside him. (PA Images)
18/21 End of an era
Prince William got a 2:1 in geography after four years studying for his Master of Arts. (PA Images)
19/21 Special guest at graduation
The Queen travelled to St Andrews for her grandson's graduation. Pictured here with Principal Brian Lang William. (PA Images)
20/21 Graduation day
The prince made time again to speak to well-wishers as he marked the end of his time in Scotland. (Anwar Hussein)
21/21 A royal trip back in 2011
Prince William and Kate Middleton with Sir Menzies Campbell (right), visited St Andrews University ahead of their royal wedding in 2011. They will return there, 10 years and three children later, in May.
Prince William and Kate will be taking a trip down memory lane next week as they return to their university in Scotland during a week of engagements.
William, now 38, met Kate, now 39, at St Andrews when they were students nearly 20 years ago.
now parents to three children, will return to their old campus and meet students there now, to hear about how they have coped with studying during the coronavirus pandemic.
They'll also head to the beach for a land yachting session with carers from the Fife area.
The story goes that William and Kate became friends in their first year, but it was at a charity fashion show that Kate really caught her future husband's eye.
Read more: Duchess of Cambridge tours exhibition linked to her artistic university days
She braved the catwalk in a see-through skirt which was pulled up and worn as a dress over a bikini.
The couple were together for several years before William proposed. They did break up for a brief period after university, however William realised he couldn't be without Kate and the pair went on to get engaged and then married at St Paul's Cathedral in London.
They have just
celebrated their 10th wedding anniversary, so what could be more fitting than going back to where it all began?
Here's a look back at some of their university moments.