A lot can happen in a year, especially if you're the Duke and Duchess of Sussex. Today is Prince Harry and Meghan Markle's first wedding anniversary, and since their big day, the couple has been tied up with royal engagements, went on their first official royal tour together, and most recently welcomed their first child, Archie who was born two weeks ago.

To celebrate their busy first year of married life, the Duke and Duchess of Sussex have released a one-minute long video on their official Instagram page, showing a series of never-before-seen pictures from their fairytale wedding at Windsor Castle on May 19, 2018. 

In the caption accompanying the post, the page says: "Happy one year anniversary to Their Royal Highnesses, The Duke and Duchess of Sussex! Today marks the one year anniversary of the wedding of The Duke and Duchess of Sussex. Their Royal Highnesses exchanged vows at St George’s Chapel within the grounds of Windsor Castle on May 19th, 2018."

The video features the the sound of church bells and the song "This Little Light of Mine" which the caption reads "was chosen by the couple for their recessional. We hope you enjoy reliving this moment, and seeing some behind the scenes photos from this special day."

The video caption also includes a special message directly from the Duke and Duchess themselves who say, "thank you for all of the love and support from so many of you around the world. Each of you made this day even more meaningful."

Since it was first posted early this morning the video has been viewed more than 4.5 million times. 

The Duke and Duchess of Sussex will now be sharing their anniversary weekend with another member of the royal family. Lady Gabriella Kingston (maiden name Windsor) and her now husband, Mr Thomas Kingston got married yesterday at Windsor Castle, the same place where Prince Harry and Meghan Markle said their I Dos. 

Lady Gabriella Kingston is the daughter of Prince Michael of Kent, who is one of Queen's Elizabeth's cousins. She is technically in line for the