Catherine was demoted to Dowager Princess of Wales ( a title she would have held as the widow of Arthur ), and Mary was deemed illegitimate.

His family life was not so happy ; his beloved wife Maria Alexandrovna had serious problems with her lungs, which led to her death and to the dissolution of the close-knit family due to his quick morganatic marriage to his longtime mistress, Princess Catherine Dolgoruki.

Princes Dmitri and Prince Nicholas Romanov were present at the ceremony, along with Princess Catherine Ioannovna of Russia, daughter of Prince Ioann Konstantinovich of Russia.

Princess Catherine who was 90 years old at the time, and died in Montevideo Uruguay the following year, was the last member of the Imperial Family to be born before the fall of the dynasty, and was ultimately to become the last surviving uncontested dynast of the Imperial House of Russia.

* November 26 – Princess Catherine of Portugal, writer ( d. 1463 )

* January 9 – Princess Catherine Pavlovna of Russia, Queen of Württemberg ( b. 1788 )

* July 16 – Princess Henriette Catherine of Nassau marries John George II, Prince of Anhalt-Dessau, in Groningen.

## married in 1446 Princess Catherine of Saxony ( 1421 – 1476 )

* March 26 – The Treaty of Medina del Campo between England and Spain includes provision for a marriage between Arthur, the son of King Henry VII of England, and Princess Catherine of Aragon.

* June 17 – Princess Catherine of Portugal, writer ( b. 1436 )

She was the first Princess of Wales for over two hundred years, the last one being Catherine of Aragon.

( Following the annulment of Henry VIII's marriage to Catherine of Aragon, Catherine officially reverted to her earlier title of Dowager Princess of Wales, as the widow of Henry's older brother, Arthur, Prince of Wales, because Henry did not wish to acknowledge that he had ever been legally married to her.

While some past princesses, for example Catherine of Aragon, Alexandra of Denmark and Mary of Teck, were called " Princess Catherine ", " Princess Alexandra " and " Princess Mary ", that was because they were already princesses ( of Spain, Denmark and Teck respectively ) when they married.

* Princess Catherine Beatrice of Savoy ( Turin, 6 November 1636 – Turin, 26 August 1637 ) twin of the above

* Philippa Gregory, The Constant Princess, a story about the young Catherine of Aragon and her early life in England

In April 1547, using Edward ’ s support to circumvent Somerset ’ s opposition, Thomas Seymour secretly married Henry VIII's widow Catherine Parr, whose Protestant household included the 11-year-old Lady Jane Grey and the 13-year-old Princess Elizabeth.

In summer 1548, a pregnant Catherine Parr discovered Thomas Seymour embracing Princess Elizabeth.

*# Catherine, Princess of France ( Paris, 4 February 1378 – November 1388, buried at Abbaye De Maubuisson, France ), m. John of Berry, Count of Montpensier ( son of John, Duke of Berry )

Beginning a novel tradition, one of that couple's daughters, Princess Olga Aleksandrovna Yurievskaya ( 1873 – 1925 ), in 1895 married the child of an 1868 morganatic marriage in the House of Nassau, George, Count von Merenberg ( 1871 – 1965 ).

She was a long-time mistress of Tsar Alexander II of Russia and later, as his morganatic wife, was created Princess Yurievskaya ( Светлейшая княгиня Юрьевская ).

He granted Catherine the title of Princess Yurievskaya and legitimized their children, though they had no right to the throne as children of a morganatic marriage.

* Princess Olga Alexandrovna Yurievskaya ( 7 November 1874 – 10 August 1925 ); married Georg Nikolaus, Count of Merenberg, a morganatic son of Prince Nikolaus Wilhelm of Nassau by his wife, Natalia Aleksandrovna, daughter of Alexander Pushkin.

* Princess Catherine Alexandrovna Yurievskaya ( 9 February 1878 – 22 December 1959 ); married, firstly, Prince Alexander Vladimirovich Baryatinsky ; married, secondly, Prince Sergei Platonovich Obolensky.

In addition to James II himself ( who died a few months after the act received the royal assent ) and his Catholic children Prince James and Princess Louisa, the act also excluded the descendents of James ' sister Henrietta, the youngest daughter of Charles I. Henrietta's daughter Anne was then the Queen of Sardinia and a Catholic ; the Jacobite heirs of today are descended from her line.

He was the youngest child and the second son of Prince Louis of Battenberg and his wife Princess Victoria of Hesse and by Rhine.

* September 18 – In Athens, King Constantine II of Greece marries Princess Anne-Marie of Denmark, who becomes Europe's youngest Queen at age eighteen years, nineteen days.

* December 3 – Princess Louise of the United Kingdom, second youngest daughter of Queen Victoria ( b. 1848 )

* April 14 – Princess Beatrice, youngest child of Queen Victoria ( d. 1944 )

During the 1870s, there was some talk of a marriage between him and Queen Victoria's youngest daughter, Princess Beatrice.

At Buckingham Palace on 22 July 1896, Prince Carl married his first cousin Princess Maud of Wales, youngest daughter of the future King Edward VII of the United Kingdom and his wife, Princess Alexandra of Denmark, eldest daughter of King Christian IX of Denmark and Princess Louise of Hesse-Kassel.

His maternal grandparents were Prince Philippe of France and his first wife Princess Henrietta Anne, the youngest daughter of King Charles I of England and Henrietta Maria of France.

In 1817, Charles Albert married his second cousin once removed, Maria Theresa of Austria, the youngest daughter of Ferdinand III, Grand Duke of Tuscany, and Princess Luisa of Naples and Sicily.

The county is named for Princess Louise of Great Britain, youngest daughter of King George II, and wife of King Frederick V of Denmark.

As a symbol of his alliance with Napoleon, Frederick's daughter, Princess Catharina, was married to Napoleon's youngest brother, Jérôme Bonaparte.

* Princess Catharina of Württemberg ( 1783 – 1835 ); married on 22 August 1807 in the Royal Palace at Fontainebleau, France, Jérôme Bonaparte, King of Westphalia, youngest brother of Napoleon I, and had issue.

Prince Andrew was the first child born to a reigning British or Commonwealth realms monarch since Queen Victoria's youngest child, Princess Beatrice, was born in 1857 ( incidentally Andrew also named his eldest daughter Beatrice ).

* Princess Vera Constantinovna of Russia Romanova, was the youngest child of Grand Duke Constantine Constantinovich of Russia and his wife Grand Duchess Elizabeth Mavrikievna.

He was born in Schwerin, the youngest son of Frederick Francis II, Grand Duke of Mecklenburg-Schwerin, and his third wife, Princess Marie of Schwarzburg-Rudolstadt.

Sophia was the youngest daughter of Wilhelm, Duke of Nassau, by his second wife Princess Pauline Friederica Marie of Württemberg.

Michael was born at Anichkov Palace on Nevsky Prospekt in Saint Petersburg, as the youngest son and penultimate child of Tsarevitch Alexander of Russia and his wife, Marie Feodorovna ( known before her marriage as Princess Dagmar of Denmark ).

* Princess Margaretha Antonia Marie Felicite of Liechtenstein, the Grand Duke's youngest sister.

* Princess Beatrice of the United Kingdom, youngest daughter of Queen Victoria

She was named after Victoria Eugenie of Battenberg, the daughter of Princess Beatrice, the youngest daughter of Queen Victoria, and Princess Helena, Victoria's third daughter.

* HRH Princess Chulabhorn Walailak ( the King's youngest daughter )