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

The Belgian noble and Provincial Councillor of Hainaut, Count Philippe de Lannoy, who was the father of Princess Stéphanie, the Hereditary Grand Duchess of Luxembourg, died at the age of 96 on 10th January, 2019

Queen Mathilde of Belgium donned a smart black coat and dress for the royal farewell - and opted to finish the look with a bold silver statement necklace. Above, pictured with Prince de Ligne

Queen Mathilde of Belgium, wrapped up in a smart black coat, teamed with a black dress and patent heels, carried a patent clutch in her left hand, and finished her outfit off with a bold silver statement necklace and matching earrings. She was greeted by Prince De Ligne (left) as she arrived at the service - which was attended by the Luxembourg royals

During the sombre service, loved ones of Count Philippe de Lannoy carried his coffin through the streets of Belgium

Prince Louis also attended the funeral of Count Philippe de Lannoy, who died on 10th January 2019 at the age of 96, with his sister Princess Alexandra

Grand Duke Henri Luxembourg on left, a first cousin to King Philippe of Belgium, was dressed for the occasion in a smart tailored jacket and pin-striped trousers as he arrived four the funeral with son Prince Louis (2nd row left) and daughter Princess Alexandra of Luxembourg

Queen Mathilde of Belgium attended the funeral of Count Philippe de Lannoy which was held at Frasnes-Lez-Anvaing earlier today, 16th January. She was greeted by Prince de Ligne of Belgium with a kiss on her hand as she arrived for the proceedings

The coffin was marched through the cobbled streets of Belgium as the Luxembourg royals made their way to Frasnes-Lez-Anvaing, whic his located in the Belgian province of Hainaut

Hereditary Grand Duchess Stephanie of Luxembourg pictured during the funeral service for her father at Frasnes-Lez-Anvaing

Prince Guillaume, Hereditary Grand Duke of Luxembourg and Stéphanie, Hereditary Grand Duchess of Luxembourg interlinked arms as they headed into the funeral  ceremony earlier today - January, 16, 2019

There was great sadness as Luxembourg royals gathered for the service. Above, Prince Louis and his sister Princess Alexandra of Luxembourg both pictured in attendance

Princess Sibilla of Luxembourg, the wife of Prince Guillaume of Luxembourg, donned a black hat, coat and pearl necklace as she attended the sombre service

(front row L-R) Archduchess Marie Astrid of Austria, guest, her brother Henri, Grand Duke of Luxembourgher,  sister-in-law Princess Sibilla of Luxembourg, her youngest brother Prince Guillaume of Luxembourg and nephew Prince Louis of Luxembourg, attended the funeral for Count Philippe de Lannoy in Hainaut, Belgium on January 16, 2019

Prince Guillaume, Hereditary Grand Duke of Luxembourg and Princess Stephanie, Hereditary Grand Duchess of Luxembourg walk together arm in arm during the funeral service for Count Philippe de Lannoy in Hainaut, Belgium on January 16, 2019

Queen Mathilde of Belgium cuts a sombre figure in a smart black coat, teamed with a black dress and patent heels, carried a patent clutch, and finished her outfit off with a bold silver statement necklace and matching earrings, as she attends the funeral service of the late Count Philippe de Lannoy, the father of Princess Stéphanie alongside the grand ducal family

Loved ones of Count Philippe de Lannoy carried his coffin during the funeral service at Frasnes-Lez-Anvaing, Wednesday 16 January 2019. The Count died at the age of 96, he was the father of Hereditary Grand Duchess of Luxembourg, born Countess de Lannoy.

Loved ones of Count Philippe de Lannoy carried his coffin during the funeral service at Frasnes-Lez-Anvaing, Wednesday 16 January 2019. The Count died at the age of 96, he was the father of Hereditary Grand Duchess of Luxembourg, born Countess de Lannoy.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured during the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured during the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured during the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Grand Duke Henri of Luxembourg attends the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019 along with his son Prince Louis and daughter Princess Alexandra

Prince Guillaume of Luxembourg and wife Princess Sibilla at the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Prince de Ligne of Belgium attended the funeral for Count Philippe de Lannoy in Hainaut, Belgium on January 16, 2019

Henri, Grand Duke of Luxembourg attended the funeral for Count Philippe de Lannoy in Hainaut, Belgium on January 16, 2019

Prince Guillaume of Luxembourg attended the funeral for Count Philippe de Lannoy in Hainaut, Belgium on January 16, 2019

Hereditary Grand Duchess Stephanie of Luxembourg pictured after the funeral service of her father Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured after the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured after the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured after the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg pictured after the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

(front R) Grand Duke Henri with son Prince Louis (Back) of Luxembourg and daughter Princess Alexandra back-left) pictured after the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.

(front R) Grand Duke Henri with son Prince Louis (Back) of Luxembourg and daughter Princess Alexandra back-left) pictured after the funeral service for Count Philippe de Lannoy, at Frasnes-Lez-Anvaing, Wednesday 16 January 2019.