The touching footage of the Duke and Duchess of Cambridge collecting their degrees from St Andrew's University in Scotland when they were just 23 was shared to Instagram account, Tea Time With The Cambridges.
Prince Charles, Queen Elizabeth, Prince Philip and Camilla Parker-Bowles watch on with pride - even beaming when Kate receives her degree.
The account wrote, "Just thought I would share this sweet video from William and Kate’s graduation on June 23rd, 2005!
"My favourite thing about this video is Prince Charles’ huge grin when the name of his future “darling” daughter-in-law was called!
"Even The Queen looked over at Charles!"
The video has since amassed over 100,000 views as fans gush over the royal couple, with many claiming that it showcased the royal family's fondness of Kate.
One commented: "I’ve never seen this. How sweet! Thank you so much for sharing."
Another added: "Absolutely adorable ❤️❤️❤️ It's clear how much the family loves her."
A third echoed: "I ABSOLUTELY LOVE THIS, The whole family was so proud of William & of Catherine too."
This article originally appeared on New Idea.