Cover Photo: The Prince of Wales and The Duchess of Cornwall/Twitter

Prince William, The Duke of Cambridge, celebrated his 39th birthday on Monday, just a day after Father's Day which he celebrated with his three children, Prince George, Princess Charlotte and Prince Louis.

Related: Prince William and Kate Middleton Have Launched Their Own Youtube Channel

In typical royal family fashion, Prince William's family members used the opportunity to share sweet and sentimental pictures of the prince. One of the cutest pictures was an image shared by Price Charles on Twitter of Prince William as a baby. He wrote alongside the two images he shared, "Wishing The Duke of Cambridge a very Happy Birthday today!"

William responded with a picture he posted on the official Duke and Duchess of Cambridge Instagram page by saying: "Thank you for all the birthday wishes and kind messages".

Over his years as a key member of the royal family, Prince William has certainly done a lot of good for the community. From supporting the efforts of medical staff during the pandemic to travelling around the world to experience new cultures, he has led with grace, love and presence.

If you are just as impressed with the prince as we are, here's a look back at some of his most influential moments.

Related: Prince William Accuses BBC of 'Failing' Princess Diana With Deceitful 1995 Interview