"We are absolutely thrilled for Kit and Rose to be marrying today," Leslie's father Sebastian Leslie told reporters before the ceremony. "It's an absolutely lovely day for us."
Family and friends attended the private ceremony, including Game of Thrones stars and other celebs.
Rewind to September 2017 when the couple's official announcement was made in The London Times. "The engagement is announced between Kit, younger son of David and Deborah Harrington of Worcestershire, and Rose, middle daughter of Sebastian and Candy Leslie of Aberdeenshire," the announcement read.
BBC News would later report that, "A 23 June date has been posted at the Huntly registration office in Aberdeenshire" confirming their wedding was scheduled for this weekend.
Although the twosome didn't make their red carpet debut as a couple until the Olivier Awards in April 2016, both Kit and Rose have expressed their love for each other at special times in their relationship.
When recalling their love story, Kit couldn't help but look back at shooting season two in Iceland with his special co-star.
"Because the country is beautiful, because the Northern Lights are magical, and because it was there that I fell in love," he shared with Vogue Italia. "If you're already attracted to someone, and then they play your love interest in the show, it's becomes very easy to fall in love."
And when speaking to The Telegraph, Rose couldn't help but admit that she was "very happy" in her relationship.
"He's not a confrontational person so we don't ever blow off steam," she shared. "[He's] a great man. I'm very proud of him."
Congratulations to the couple on their special day.