Queen Margrethe II of Denmark, Hosted A Dinner Party for her younger sister Princess Benedikte's 75th birthday on April 29, 2019 in Copenhagen, Denmark.

Princess Benedikte of Denmark (pictured center) arrived at her birthday celebrations 2019 in a carriage drawn by white horses

Crown Princess Mary of Denmark appeared in good spirits as she waves to the crowd that had gathered for the special occasion at Amalienborg Palace in Copenhagen, Denmark

Crown Princess Mary (pictured) displayed elegant navy blue lace one-shoulder evening gowns for the occasion arrived at Amalienborg Palace in Copenhagen, Denmark

The 75-year-old Princess Benedikte of Denmark appeared delighted as she posed for photos in a dazzling turquoise gown which she paired with silver accessories

Crown Princess Mary who wore subtle makeup and her hair tied back, coordinated with her husband Crown Prince Frederik of Denmark in a stunning navy ensemble

Queen Margrethe II of Denmark, 79, who hosted the occasion to celebrate the 75th birthday of her younger sister Princess Benedikte, dazzled in a purple and black lace dress which she teamed with an enchanting pearl necklace.

Queen Margrethe II of Denmark who stunned in a purple dress which was embellished with black lace, ushered her sister Princess Benedikte of Denmark into the esteemed celebrations

Princess Benedikte's two daughters, Princess Alexandra of Sayn Wittengenstein-Berlebourg stunned in a Grecian-inspired orange gown, while her younger sister Princess Nathalie, chose a beautiful blue-and-silver dress for the occasion as they arrived with Count Michael Ahlefeldt-Laurvig-Bille at their mom's birthday celebrations 2019.

Many well-wishers lined up outside the place to wish Princess Benedikte of Denmark a Happy Birthday who lost her husband Prince Richard two years ago after 49 years of marriage.

Managing Director for Tivoli Copenhagen Lars Liebst and wife arrive at Princess Benedikte of Denmarks 75th birthday party 2019 hosted by Queen Margrethe of Denmark at Amalienborg Palace in Copenhagen, Denmark.

Prime Minister of Denmark Lars Loekke Rasmussen and wife arrive at Princess Benedikte of Denmarks 75th birthday party 2019 hosted by Queen Margrethe of Denmark at Amalienborg Palace in Copenhagen, Denmark.

Speaker of the House, Pia Kjærsgaard and husband arrive at Princess Benedikte of Denmarks 75th birthday party 2019 hosted by Queen Margrethe of Denmark at Amalienborg Palace in Copenhagen, Denmark.

(R) Princess Nathalie and Princess Alexandra of Sayn Wittengenstein-Berlebourg beamed as they arrived with Count Michael Ahlefeldt-Laurvig-Bille (pictured)

Queen Anne-Marie of Greece arrived at the party wearing a stunning multi-colored dress, paired with nude accessories.

Crown Prince Frederik of Denmark arrives at Princess Benedikte of Denmarks 75th birthday party 2019 hosted by Queen Margrethe of Denmark at Amalienborg Palace in Copenhagen, Denmark.

Crown Mary Mary dazzled in navy blue lace one-shoulder gown, while her husband Crown Prince Frederik of Denmark looked handsome as ever in a tuxedo. The dapper duo arrived hand-in-hand for the party, hosted by Queen Margrethe of Denmark at Amalienborg Palace.

Crown Princess Benedikte of Denmark beamed with delight in a shimmering turquoise dress which she accessorized with a range of silver jewelry for her 75th birthday celebrations at the Amalienborg Palace in Copenhagen, Denmark

Queen Margrethe II dazzled in a deep purple and black lace dress which she teamed with an enchanting pearl necklace while her younger sister Princess Benedikte in a shimmering turquoise caped gown which she accessorized with a range of silver jewelry.

Princess Benedikte of Denmark beamed with delight in a shimmering turquoise dress which she accessorized with a range of silver jewelry, attended a family dinner at Amalienborg Palace in Copenhagen

Danish Royal Family Attended a Christmas Day Church Service at Aarhus Catheral in Denmark on December 25, 2018

Denmark's Crown Princess Mary has stunned in scarlet as she and the Danish royal family attended a Christmas Day church service 2018. While all four youngsters sported black ankle boots and warm winter coats, the girls opted for skirts and tights as opposed to the navy pants chosen by the couple's sons. Pictured from left: Princess Isabella, Crown Princess Mary, Princess Josephine, Prince Christian and Prince Vincent.

Denmark's Crown Prince Frederik with their two sons Prince Christian and Prince Vincent arrived at Aarhus Catheral in Denmark for a Christmas Day church service 2018

Danish royal family attended a Christmas Day church service 2018 at Aarhus Catheral in Denmark pictured (L-R) Princess Isabella, Princess Josephine, Crown Princess Mary, Prince Christian, Prince Vincent, Crown Prince Frederik, Prince Henrik Carl, Prince Felix and Queen Margrethe II

Crown Princess Mary of Denmark, donning a knee-length scarlet overcoat with a matched a white collared shirt with a crew neck-style grey pullover to complete the polished look, as she and the Danish royal family attended a Christmas Day church service 2018, pictured with Prince Felix on right.

From back left-right: Denmark's Princess Marie, husband Prince Joachim with their children Princess Athena and Prince Nikolai attended the Christmas Day church service 2018 at Aarhus Catheral in Denmark

Denmark's Crown Princess Mary with children Princess Isabella (left) and Princess Josephine (centre) also rugged up in a bid to battle the Scandinavian winter as they attended a Christmas Day church service 2018 at Aarhus Catheral in the country's north.

Crown Princess Mary of Denmark got in the festive spirit as she attended a Christmas Day church service 2018, in gorgeous scarlet Diane Von Furstenberg red 'Mikhaila' coat with flattering belted design and luxe gold hardware detail.

Danish royal family attended a Christmas Day church service 2018 at Aarhus Catheral in Denmark, pictured (L-R) Prince Vincent, Crown Prince Frederik, Princess Isabella, Prince Christian, Crown Princess Mary, Prince Felix, Princess Josephine and Queen Margrethe II.

Crown Princess Mary of Denmark unveiled her traditional Christmas tree 2018 at Amalienborg Palace, and shared her unique alternative to fairy lights by substituting with candles on branches

2017: The Christmas tree is slightly different to last year's that featured prominently in the Amalienborg Palace

Danish Royal Family: Last year Crown Princess Mary (3rd-Left), Crown Prince Frederik (far right) and their brood, Prince Christian, 13, Princess Isabella, 11, Princess Josephine, 7, and Prince Vincent, 7, enjoyed Christmas Day in sunny Australia. Pictured in July 2018 in Denmark

Australia: The royal couple Crown Princess Mary and Crown Prince Frederik along with their children, first arrived in Sydney mid December, where they were pictured on a yacht. They later enjoyed a day at Sydney's Palm Beach, before heading to Tasmania for Christmas Day 2017 festivities

Danish Royal Family Hosted A State Dinner at Christiansborg Palace in Copenhagen on August 28, 2018.

Denmark's Queen Margrethe II took a seat as she welcomed guests to the state dinner alongside French President Emmanuel Macron, French First Lady Brigitte Macron, her children Crown Prince Frederik and Prince Joachim, their respective wives Crown Princess Mary and Princess Marie, and her sister Princess Benedikte

(R) French First Lady Brigitte Macron also toasted Queen Margrethe II (center)  with her husband French President Emmanuel Macron (L) at the banquet hosted by the Danish Royal family

The Danish Queen Margrethe II gave a speech during the dinner at Christiansborg Palace to mark the official visit of the French President Emmanuel Macron on left.

Denmark's Queen Margrethe II (pictured center) beamed in a lace gown paired with pearls as she stood with French President Emmanuel Macron and his wife First Lady Brigitte Macron, along with her son Crown Prince Frederik (R) and his wife Crown Princess Mary of Denmark (L)

French President Macron, pictured with his wife French First Lady Brigitte Macron (left) and Queen Margrethe II, is visiting Denmark in the hope of strengthening the relationships he needs to push France's agenda of a more closely united European Union. The Danish royals marked the occasion with a dinner

Crown Prince Frederik of Denmark with his wife Crown Princess Mary of Denmark arrive for the state dinner at Christiansborg Palace in Copenhagen on August 28, 2018.

Denmark's Princess Marie donned a bold red gown with an off-shoulder neckline as she joined husband Prince Joachim for a photo during a state dinner in Copenhagen

The French First Lady Brigitte Macron donned a white gown with glittering silver detailing and a daring leg slit as she arrived for the dinner with her husband French President Emmanuel Macron and the Danish Queen Margrethe II of Denmark in a dark purple lace gown paired with pearls, pictured

Pictured right to left: Queen Margrethe II of Denmark, French President Emmanuel Macron and his wife French First Lady Brigitte Macron, Crown Prince Frederik and his wife Crown Princess Mary, Prince Joachim and his wife Princess Marie of Denmark and Princess Benedikte of Denmark greet guests arriving for the state dinner in Copenhagen

Crown Prince Frederik of Denmark leans towards French First Lady Brigitte Macron as they share a quiet word ahead of the dinner. Pictured right to left: Queen Margrethe II, French President Emmanuel Macron and his wife French First Lady Brigitte Macron, Crown Prince Frederik and his wife Crown Princess Mary, Prince Joachim and his wife Princess Marie

French President Emmanuel Macron, seen shaking hands, appeared in good spirits as he joined his wife and the Danish Royal Family in welcoming guests to the palace. Pictured right-left: Queen Margrethe II, French President Emmanuel Macron and his wife French First Lady Brigitte Macron, Crown Prince Frederik and his wife Crown Princess Mary, Prince Joachim and his wife Princess Marie (not seen) and Princess Benedikte

Queen Margrethe II of Denmark looks elegant in a dark purple gown, whose husband Henrik, Prince Consort of Denmark died in February 2018, accompanied French President Emmanuel Macron as he made his way through Christiansborg Palace to the dining room

The French First Lady Brigitte Macron dazzled in a white gown with glittering silver detailing and a daring leg slit as she joined her husband French President Emmanuel Macron at the banquet hosted by the Danish Royal Family at Christiansborg Palace in Copenhagen. 

The French First Lady Brigitte Macron matched the glittering silver of her dress with a pair of metallic pointed heeled pumps, just seen, and a neat metallic silver clutch as she attended a state dinner in Copenhagen

French President Emmanuel Macron inspected the guards as he made his way into the banquet along with Danish Queen Margrethe II, who opted for a dark purple gown.

The Danish Royals and their guests dined in the beautiful Christiansborg Palace, pictured

Cheers! French First Lady Brigitte Macron joined her husband French President Emmanuel Macron at a state dinner hosted by the Danish Royal Family at Copenhagen's Christiansborg Palace. Above, French President Emmanuel Macron toasts Danish Queen Margrethe II at the start of the lavish state dinner

Crown Princess Mary of Denmark, opted for a white satin gown with a full skirt and a black watercolor floral print as she arrived for the formal dinner with husband Crown Prince Frederik

Also in attendance was Princess Benedikte of Denmark, the sister of Queen Margrethe II, who donned a soft purple flower dress with a cape

Princess Marie of Denmark done a bold red gown with an off-shoulder neckline as she joined husband Prince Joachim of Denmark for the state dinner at Christiansborg Palace in Copenhagen

(R-L) Queen Margrethe II of Denmark, French President Emmanuel Macron, and his wife French First Lady Brigitte welcome guests arriving for the state dinner at Christiansborg Palace in Copenhagen on August 28, 2018.

(R-L) Queen Margrethe II of Denmark, French President Emmanuel Macron, his wife Brigitte, and Crown Prince Frederik of Denmark welcome guests arriving for the state dinner at Christiansborg Palace in Copenhagen on August 28, 2018.

Queen Margrethe II of Denmark speaks with French President Emmanuel Macron as they welcome guests arriving for the state dinner at Christiansborg Palace in Copenhagen on August 28, 2018.