Question: Countess Victoria Bernstorff-Gyldensteen is a former lady-in-waiting of the Danish Royal Family of a princess married to who?

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House of Monpezat: The House of Laborde de Monpezat (] ) is a French family, known since the seventeenth century, associated with the Danish Royal Family by marriage after 1967, when Henri de Laborde de Monpezat wed Princess Margrethe of Denmark, heir presumptive of the ruling House of Glücksburg.  In the event of ascension to the Danish throne of their son or male-line descendant, the main branch of the Danish Royal Family will belong patrilineally to the "Laborde de Monpezat" lineage.  However, it is unclear which name the royal family will use in this event.

Mary, Crown Princess of Denmark: Mary, Crown Princess of Denmark, Countess of Monpezat, {'1': ", '2': ", '3': 'R.E.', '4': "} (Mary Elizabeth; "née" Donaldson; born 5 February 1972) is the wife of Frederik, Crown Prince of Denmark.  Frederik is the heir apparent to the throne, which means that should Frederik succeed, she will automatically become Queen of Denmark.

Prince Nikolai of Denmark: Prince Nikolai of Denmark, Count of Monpezat (Nikolai William Alexander Frederik; born 28 August 1999), is a member of the Danish Royal Family.  He is the elder son of Prince Joachim and his first wife, Alexandra, Countess of Frederiksborg.  s of 2016 , Prince Nikolai is seventh in the line of succession to the Danish throne.  At the time of his birth, he was third, after his uncle and father.

List of royal tours of Canada (21st century): Canadian royal tours in the 21st century carry on the tradition of the previous 300 years, either as an official tour, a working tour, a vacation, or a period of military service by a member of the Royal Family.  Originally, official tours were events predominantly for Canadians to see and possibly meet members of their royal family, with the associated patriotic pomp and spectacle.  However, nearing the end of the 20th century, such occasions took on the added dimension of a theme; for instance, the 2005 tour of Saskatchewan and Alberta by Queen Elizabeth II and Prince Philip, Duke of Edinburgh, was deemed to be a vehicle for Her Majesty and all other Canadians to honour "The Spirit of Nation Builders".  Also, junior members of the Royal Family began to undertake unofficial "working" tours of Canada as well; in this method, royal figures are invited by provinces, municipalities, and other organizations to events which the latter fund without assistance from the federal government.  Charles, Prince of Wales; Anne, Princess Royal; Prince Andrew, Duke of York; and Prince Edward, Earl of Wessex, and Sophie, Countess of Wessex, have all made several small tours in this fashion.

Countess Victoria Bernstorff-Gyldensteen: Countess Victoria Bernstorff-Gyldensteen is a former lady-in-waiting of the Danish Royal Family of Mary, Crown Princess of Denmark.

Mary Steen: Mary Dorothea Frederica Steen (28 October 1856 – 7 April 1939) was a Danish photographer and feminist.  At the age of 28, she opened a studio in Copenhagen where she specialized in indoor photography.  She later became Denmark's first female court photographer, working not only with the Danish royal family but, at the invitation of Princess Alexandra, with the British royal family too.  She also played an important part in improving conditions for female workers and encouraging women to take up the profession of photography.

Fredensborg Palace: Fredensborg Palace (Danish: "Fredensborg Slot" ; ] ) is a palace located on the eastern shore of Lake Esrum (Danish, "Esrum Sø") in Fredensborg on the island of Zealand ("Sjælland") in Denmark.  It is the Danish Royal Family’s spring and autumn residence, and is often the site of important state visits and events in the Royal Family.  It is the most used of the Royal Family’s residences.

Danish royal family: The Danish royal family consists of the dynastic family of the monarch.  All members of the Danish royal family, except Queen Margrethe II, hold the title of "Prince/Princess of Denmark".  Dynastic children of the monarch and of the heir apparent are accorded the style of "His/Her Royal Highness", while other members of the dynasty are addressed as "His/Her Highness".  The Queen is styled "Her Majesty".

List of Danish royal residences: The Danish Royal Family inhabit a range of residences around Denmark.  Historically all the residences of the royal family were privately owned.  With the introduction of the new Constitution in 1849, some of the residences were claimed as property of the "Kingdom of Denmark".  Some of the palaces are still privately owned by the Queen or other members of the Royal Family.  The Agency for Palaces and Cultural Properties (the Danish equivalent of the Historic Royal Palaces Agency) is responsible for the management and upkeep of some of the royal palaces and gardens.

Princess Alice, Countess of Athlone: Princess Alice, Countess of Athlone, (Alice Mary Victoria Augusta Pauline; née Princess Alice of Albany; 25 February 1883 – 3 January 1981) was a member of the British Royal Family.  She is the longest-lived Princess of the Blood Royal of the British Royal Family, and was the last surviving grandchild of Queen Victoria.  She also held the titles of Princess of Saxe-Coburg and Gotha and Duchess in Saxony from birth, as well as a Princess of Teck by marriage, until 1917 when the British Royal Family ceased usage of German titles.  She was godmother to Queen Beatrix of the Netherlands, who is the granddaughter of her first cousin on her mother's side, Queen Wilhelmina of the Netherlands.

Supporting paragraphs: Countess Victoria Bernstorff-Gyldensteen Mary, Crown Princess of Denmark
Answer: Frederik, Crown Prince of Denmark