Congratulations are in order for King Frederik and Queen Mary of Denmark, who are celebrating their 20th wedding anniversary on Tuesday.
And while the royal couple will likely mark the moment in private – perhaps with their four children Crown Prince Christian, Princess Isabella, and twins Prince Vincent and Princess Josephine – Frederik and Mary will be out in public as they kick off their two-day state visit to Norway.
© GettyThe Danish king and queen will be reunited with King Harald V and Queen Sonja from 14 to 15 May, as well as Norway's future king, Crown Prince Haakon and Crown Princess Mette-Marit, who have a friendly relationship with the Danish royals.
Frederik was Haakon's best man on his wedding day to Mette-Marit in 2001, while Haakon is a godfather to Frederik and Mary's son, Christian.
On Tuesday morning, on the day of their anniversary, Frederik and Mary will travel by sea on the Royal Ship Dannebrog and arrive at Honnørbryggen in Oslo, where they will be welcomed in an official ceremony.
© GettyThey will then have a meeting at the royal palace before attending a wreath-laying service to commemorate victims of the Second World War.
Other engagements of the day will also include a meeting with the Norwegian president, lunch at the royal palace, and a visit to the Oslo Science City organisation.
It will culminate with a state banquet at the palace – cue, tiaras from the royal ladies. Speeches are usually made at such gala dinners, and no doubt Frederik and Mary's milestone wedding anniversary will be referenced.
This is the couple's second state visit abroad since Frederik ascended the Danish throne in January following the abdication of his mother, Queen Margrethe II. The couple travelled to Sweden earlier this month, and later in June, they will also visit the Faroe Islands, which are part of Denmark.
Frederik and Mary tied the knot on 14 May 2004 at Copenhagen Cathedral. Even before his bride arrived, Frederik was seen wiping away a tear.
Tasmania-born Mary looked absolutely beautiful in a boatneck ivory gown that was created by Danish designer Uffe Frank. She paid tribute to both her Australian heritage and her new Danish identity, carrying eucalyptus, a tree native to Australia, in her wedding bouquet and wearing a tiara that was gifted to her by her royal in-laws.
