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 Royals Attend Unveiling Of New Sculpture Park on June 7, 2018 in Oslo, Norway

Princess Ingrid Alexandra of Norway seemed perfectly at ease when it was time for her to whip off the blue sheet covering the new sculpture, smiling for the cameras as she did so.

Princess Ingrid Alexandra of Norway, pictured today, is the eldest child of Crown Prince Haakon, 44, the heir to the Norwegian throne, and his wife, Crown Princess Mette-Marit, 44. Princess Ingrid Alexandra is expected to one day become Norway's second female monarch, after the 15th-century Queen Margaret.

Princess Ingrid Alexandra of Norway was joined by her grandmother Queen Sonja of Norway, 80, as she visited an Oslo sculpture park named in her honor

She might only be 14, but Princess Ingrid Alexandra of Norway demonstrated the poise and grace befitting of a future queen as she attended an event, and is joined by her grandmother Queen Sonja as she unveils a work of art in the Oslo sculpture park named in her honor on June 7, 2018

Princess Ingrid Alexandra of Norway sported a bubblegum-pink dress and white plimsolls, wearing her brunette hair in curls around her shoulders. The outfit perfectly complimented the sherbet blue shade of her grandmother Queen Sonja's jacket, waved to the crowds as they made their way through the Oslo sculpture park.

(L) Princess Ingrid Alexandra of Norway looked delighted with the sculpture - a tree growing out of a hand, is joined by her grandmother Queen Sonja (R) as she unveils a work of art in the Oslo sculpture park named in her honor

Princess Ingrid Alexandra of Norway's pale pink dress perfectly complemented her grandmother, Queen Sonja of Norway's blue jacket, pictured.

Princess Ingrid Alexandra of Norway was given the responsibility of unveiling a new work of art inside the gardens at the Oslo sculpture park named in her honor

Princess Ingrid Alexandra of Norway sported a bubblegum-pink dress and white plimsolls, wearing her brunette hair in curls around her shoulders.

Princess Ingrid Alexandra of Norway with grandmother Queen Sonja of Norway linked arms as they strolled through the sculpture park, waving to the gathered crowds.

Princess Ingrid Alexandra attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Norway's Queen Sonja and Princess Ingrid Alexandra attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra in a bubblegum-pink dress, wearing her brunette hair in curls around her shoulders, attends the unveiling of sculptures in the Oslo sculpture park named in her honor.

(R) Queen Sonja and Princess Ingrid Alexandra (L) attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra of Norway seemed perfectly at ease when it was time for her to whip off the blue sheet covering the new sculpture, smiling for the cameras as she did so.

Princess Ingrid Alexandra of Norway sported a bubblegum-pink dress and white plimsolls, wearing her brunette hair in curls around her shoulders. The outfit perfectly complimented the sherbet blue shade of her grandmother Queen Sonja's jacket, waved to the crowds as they made their way through the Oslo sculpture park.

Queen Sonja and Princess Ingrid Alexandra of Norway attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7,, 2018 in Oslo, Norway.

Norway's Queen Sonja and Princess Ingrid Alexandra attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

 Queen Sonja and Princess Ingrid Alexandra attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra of Norway demonstrated the poise and grace befitting of a future queen as she attended an event, is joined by her grandmother Queen Sonja as she unveils a work of art in the Oslo sculpture park named in her honor

Princess Ingrid Alexandra of Norway is joined by her grandmother Queen Sonja as she unveils a work of art in the Oslo sculpture park named in her honor

Princess Ingrid Alexandra attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra of Norway attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Queen Sonja attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

 Queen Sonja and Princess Ingrid Alexandra attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

 Princess Ingrid Alexandra attends the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Princess Ingrid Alexandra of Norway sported a bubblegum-pink dress and white plimsolls, her outfit perfectly complimented the sherbet blue shade of her grandmother Queen Sonja's jacket, as they strolled through the Oslo sculpture park

Queen Sonja and Princess Ingrid Alexandra attend the unveiling of sculptures in the Princess Ingrid Alexandra's Sculpture Park on June 7, 2018, in Oslo, Norway.

Danish Queen Margrethe And Norwegian Queen Sonja Attend International Music Competition on November 3, 2017 in Copenhagen, Denmark.

(R-L) Queen Sonja of Norway and Queen Margrethe of Denmark arrive at the DR's Concert Hall to attend Queen Sonja's International Music Competition on November 3, 2017 in Copenhagen, Denmark.

Danish Queen Margrethe II cut a flamboyant figure for the occasion, wrapping up from the autumn chill in an opulent fur shawl she paired with a silver frock underneath to attend the latter's International Music Festival held in Copenhagen.

(L) Queen Margrethe II of Denmark, as she stepped out alongside Queen Sonja of Norway (R) to attend the latter's International Music Festival held in Copenhagen

(L-R) Danish Queen Margrethe II, in a wrapping up from the autumn chill in an opulent fur shawl she paired with a silver frock underneath. Meanwhile, Norwegian Queen Sonja, favored a more muted ensemble that saw her sport a two-tone frock and a tailored embellished blazer jacket on top, attend International Music Competition in Copenhagen.

 Queen Margrethe of Denmark arrive at the DR's Concert Hall to attend Queen Sonja's International Music Competition on November 3, 2017 in Copenhagen, Denmark.

Queen Sonja of Norway welcomes as host for the evening Queen Margrethe of Denmark outside the DR's Concert Hall to attend Queen Sonja's International Music Competition on November 3, 2017 in Copenhagen, Denmark.

Queen Sonja of Norway arrives as host for the evening at the DR's Concert Hall to attend Queen Sonja's International Music Competition on November 3, 2017 in Copenhagen, Denmark.

Danish Queen Margrethe II pictured with husband Prince Consort Henrik.  It was announced in September 2017 that Prince Consort Henrik is suffering from dementia - the disease is said to have advanced quicker than expected and the 83-year-old's royal engagements will be downgraded as a result of the diagnosis

Prince Consort Henrik - Born Henri Marie Jean Andre Count de Laborde de Monpezat on June 11, 1934 in Talence, near Bordeaux, he met Queen Margrethe II, then the crown-princess, while he was stationed in London as a diplomat - they share two children

Queen Sonja Of Norway Goes For A Walk With Multicultural Women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(C) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(C) Queen Sonja of Norway line up for a lunch after she goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(R) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(R) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(2nd-L) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(R) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(C) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(R) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(R) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.

(R) Queen Sonja of Norway goes for a walk in the woods with multicultural women and the Norwegian Trekking Association on August 24, 2017 in Drammen, Norway.