British actors Kit Harington (R) and Rose Leslie at the Olivier Awards at the Royal Opera House in London, Britain, April 3, 2016.

:: Kit Harington and his former “Game of Thrones” on-screen romantic partner, Rose Leslie, are engaged.

A formal notice published in the Times of London newspaper Wednesday announced the upcoming marriage of “Mr. K.C. Harington and Miss R.E. Leslie.

“It describes the couple as “Kit, younger son of David and Deborah Harington of Worcestershire, and Rose, middle daughter of Sebastian and Candy Leslie of Aberdeenshire.”

Harington and Leslie were a couple on the HBO series as Jon Snow and Ygritte. Leslie left the cast in 2014.

Her publicist and HBO didn’t immediately offer comment Wednesday.

Kit Harington, right, and Rose Leslie pose for photographers as they arrive for the Olivier Awards at the Royal Albert Hall in central London, Sunday, April 9, 2017.