The royal couple, who wed in a civil ceremony in April 2005, marked the big day with a heartfelt message during their royal trip to Italy.

She also shared the gift she got the King to mark the occasion. It turns out Queen Camilla has the secret to a happy marriage—and she’s not afraid to share it. During the third day of her four-day state visit to Italy alongside husband King Charles—which also happened to be the couple’s milestone 20th wedding anniversary—Camilla said on April 9 that her secret to a long marriage with the King is “laughing at the same things,

King Charles and Queen Camilla commemorated their two-decades-long marriage on April 9, after tying the knot back in 2005. The British monarchs have been through a hell of a ride throughout their courtship and marriage.