Duchess Meghan and Prince Harry are celebrating one year of marriage with some never-before-seen pictures from their royal wedding last year.

The couple, who welcomed son Archie Harrison just days ago, shared a black-and-white video montage on their official Instagram account, @sussexroyal, featuring behind-the-scenes moments from their big day on May 19, 2018.

"Thank you for all of the love and support from so many of you around the world," the Duke and Duchess of Sussex wrote. "Each of you made this day even more meaningful."

The post included photos of a smiling Meghan Markle sharing a quiet moment with her mother, Doria Ragland, and Prince Harry heading to the altar with big brother (and best man) Prince William by his side.

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The images are backed with a performance of "This Little Light of Mine" by the Kingdom Choir, who capped off the royal wedding at St. George’s Chapel at Windsor Castle in England

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

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The Duke and Duchess of Sussex have celebrated many firsts since tying the knot in their landmark wedding, which moved the royal family into the modern era.

In November, Prince Harry and Duchess Meghan traded in Nottingham Cottage on the Kensington Palace grounds for Frogmore Cottage, a house on the grounds of Windsor Estate about 25 miles west of London.

The royal couple also welcomed their first child together – son Archie Harrison Mountbatten-Windsor – on May 6. They introduced him to the world days later at Windsor Castle, posing for photos and video.

Contributing: Patrick Ryan

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