The Norwegian Royal Family attended the annual Christmas Day service in the picturesque Holmenkollen Chapel on December 25, 2018 in Oslo

The Norwegian Prince Sverre Magnus looked straight ahead as he carefully escorted his grandmother Queen Sonja, 81, across the snowy ground on the outskirts of Oslo

Norway's Crown Prince Haakon and Crown Princess Mette-Marit, pictured, joined the King and Queen of Norway at the annual Christmas Day service 2018 in Oslo.

Princess Ingrid Alexandra, with her father Crown Prince Haakon to her right and brother and Prince Sverre Magnus to her left, wore a grey coat and heart pendant to the annual Christma Day service 2018 in Oslo

Crown Princess Mette-Marit of Norway wore a floral coat to the annual Christmas Day service 2018 at the picturesque Holmenkollen Chapel on the outskirts of Oslo which was burned down in an arson attack in 1992

Norway's Queen Sonja also took the arm of her grand-daughter Princess Ingrid Alexandra, pictured, flanked by Prince Sverre Magnus and King Harald, in Oslo as they attend the Christmas Day service 2018 at Holmenkollen Chapel

Norway's Queen Sonja took the elbow of her 13-year-old grandson Prince Sverre Magnus as the Norwegian royal family left a Christmas day service 2018 in Oslo

King Harald V of Norway, who has been on the throne since 1991, wore a thick overcoat buttoned up against the cold as he left the Christmas Day service 2018 at Holmenkollen Chapel in Oslo accompanied by Priest Silje Karlsen

Norway's Crown Princess Mette-Marit  and husband Crown Prince Haakon leave Holmenkollen chapel after the Christmas Day service 2018 in Oslo.

Norwegian Royal Silver Jubilee Tour - Visit to Stavanger on June 27, 2016 in Stavanger, Norway.

 Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

 Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit and Crown Prince Haakon of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit and Crown Prince Haakon of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

 Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit and Crown Prince Haakon of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway



Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway

( L to R ), Crown Prince Haakon of Norway, Queen Sonja of Norway, King Harald of Norway, and Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway

Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

 Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Prince Haakon of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway is presented with a bouquet of flowers, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit of Norway is presented with a bouquet of flowers, watched by Queen Sonja of Norway, ( right ), on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Prince Haakon of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Queen Sonja of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.

Crown Princess Mette-Marit of Norway, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway.(

Crown Princess Mette-Marit of Norway, shoe detail, on a visit to Stavanger, during the King and Queen of Norway's Silver Jubilee Tour, on June 27, 2016 in Stavanger, Norway

Queen Sonja and King Harald V Of Norway Visit Rome, Italy on April 6, 2016

Queen Sonja of Norway arrives at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway arrives at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway arrives at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy.

King Harald V (R) and Queen Sonja of Norway greet Italian Prime Minister Matteo Renzi (C) as they arrive at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy. 

King Harald V of Norway greets Italian Prime Minister Matteo Renzi as he arrive at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy.

King Harald V of Norway (R) greets Italian Prime Minister Matteo Renzi as he arrive at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy.

Italian President Sergio Mattarella greets King Harald V of Norway at the Quirinale Palace during a state visit on April 6, 2016 in Rome, Italy.

King Harald V of Norway arrives at the Quirinale Palace during a state visit on April 6, 2016 in Rome, Italy.

Italian Prime Minister Matteo Renzi arrives at Palazzo Chigi during a state visit on April 6, 2016 in Rome, Italy.

King Harald V of Norway attends a meeting with Italian President Sergio Mattarella at the Quirinale Palace during a state visit on April 6, 2016 in Rome, Italy.

(L-R) Queen Sonja and King Harald V of Norway pose with Italian President and his daughter Laura Mattarella at the Quirinale Palace during a state visit on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway arrives at Rome's Palazzo Chigi, on April 6, 2016, during an official visit.

Queen Sonja of Norway walks towards her husband King Harald of Norway (not seen) and Italy's Prime Minister Matteo Renzi (not seen) at Rome's Palazzo Chigi, on April 6, 2016 during an official visit.

King Harald V of Norway is received by Italian President Sergio Mattarella as he arrives at the Quirinale Palace during a state visit on April 6, 2016 in Rome, Italy. 

Corrazzieri (guards of the Italian President) attend the state visit of King Harald V of Norway at the Quirinale Palace on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway attends a meeting with President of Italian Senate Pietro Grasso at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway attends a meeting with President of Italian Senate Pietro Grasso at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway attends a meeting with President of Italian Senate Pietro Grasso at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy. 

King Harald V and Queen Sonja of Norway attend a meeting with President of Italian Senate Pietro Grasso at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

President of Italian Senate Pietro Grasso and his wife Maria Fedele arrive at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

King Harald V and Queen Sonja of Norway attend a meeting with President of Italian Senate Pietro Grasso and his wife Maria Fedele at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

King Harald V and Queen Sonja of Norway attend a meeting with President of Italian Senate Pietro Grasso at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway attends a meeting with President of Italian Senate Pietro Grasso at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

King Harald V and Queen Sonja of Norway greet President of Italian Senate Pietro Grasso (2nd L) and his wife Maria Fedele (L) as they arrive at Palazzo Giustiniani during a state visit on April 6, 2016 in Rome, Italy.

Italian Ambassador to Norway Giorgio Novello arrives at Palazzo Giustiniani on April 6, 2016 in Rome, Italy.

Queen Sonja of Norway (hat detail) attends a meeting with Italian President Sergio Mattarella at the Quirinale Palace during a state visit on April 6, 2016 in Rome, Italy.