HRH PRINCE GEORGE ALEXANDER LOUIS OF CAMBRIDGE
All three names are family names, very traditional names. George is not the first Cambridge prince with the name George.
Prince Adolphus, 10th child of George III, was Duke of Cambridge. He married Augusta of Hesse-Cassel. Their eldest child, Prince George of Cambridge (1819-1904), a first cousin, was the second and last Duke of Cambridge of that creation. He married in contravention of the Royal Marriages Act, which meant that his sons could not inherit his titles or bear his name.
Prince George's youngest sister, Mary Adelaide, married the Duke of Teck. Their daughter, Mary, married George V - the grandparents of Queen Elizabeth II, whose father, Prince Albert, Duke of York, reigned as George VI, even though he was always known privately as Bertie.
The Cambridges were, of course, paternal first cousins to Queen Victoria. Another paternal first cousin, was Prince George of Cumberland, who succeeded his father, Prince Ernest Augustus, as Duke of Cumberland, but also as King Georg V of Hannover. [William IV died in June 1837. The British throne was inherited by his niece, Victoria, but the Kingdom of Hannover passed to his brother, the Duke of Cumberland, due to Salic law.]
George was the first name of the first four kings of the Hanover dynasty. The third king should have been Frederick, but he died before his father, George II, who when George II died, he was succeeded by Frederick's eldest son, George, who reigned as George III. His eldest son was George IV.
Queen Victoria decided to go with other names for her sons. The eldest was Albert Edward (for her husband and her father). The youngest son, Leopold was given George as one of his middle names.
The future Edward VII and his wife Alexandra named their second George. The eldest son, Prince Albert Victor, was named for his paternal grandparents. He died in January 1892, only weeks before his marriage to Princess Mary of Teck (daughter of Mary Adelaide of Cambridge). Prince George moved into second place in the line of succession. In 1894, he married his brother's fiancee.
They saved George as a first name for their fifth child and fourth son, Prince George Edward Alexander Edmund (1902-1942), although the two eldest sons, Edward (known as David) and Albert have George as one of their middle names. This Prince George was created Duke of Kent in 1934. His eldest grandson, the Earl of St. Andrews, is also named George.
Queen Victoria was named for her godfather Emperor Alexander I of all the Russias. She was baptized as Alexandrina Victoria, called Drina for several years, but reigned as Victoria. There are three Scots kings with the name of Alexander, but the name returned to the Royal family when Princess Alexandra of Denmark married the future Edward VII in 1863.
Two of their three daughters, Louise and Victoria have Alexandra as one of their middle names. The youngest son was named Alexander John. He lived for only a few hours in 1871.
Princess Louise named her eldest daughter, Alexandra, who married Prince Arthur of Connaught. Alexandra is the first name of Princess Alexandra (1936), only daughter of the Duke and Duchess of Kent. It is also a middle name for several descendants of George V, including Queen Elizabeth.
The name Alexander also comes from Prince Philip's family. Prince Alexander of Hesse and By Rhine (1823-1888) was married morganatically to Julie von Hauke, who was created Princess of Battenberg, Alexander's nephew, Grand Duke Ludwig IV of Hesse and by Rhine, married Queen Victoria's second daughter, Princess Alice.
Alexander and Julie's eldest son, Prince Louis of Battenberg (1854-1921) married Princess Victoria of Hesse and by Rhine. Louis and Victoria's father were first cousins. Prince Louis served in the Royal Navy, became a naturalized British citizen, and was created Marquess of Milford Haven in 1917.
Louis and Victoria had four children: Alice (married Prince Andrew of Greece), Louise (married as his second wife, King Gustav VI of Sweden), George (married Countess Nada Torby) and Louis (married Edwina Ashley.) The present Marquess of Milford Haven is George's grandson. Louis was created Earl Mountbatten of Burma, and was assassinated in 1979 by the IRA.
Although Lord Mountbatten had a close relationship with Prince Charles, he did not raise Prince Philip. Philip's guardian was Louis' older brother, George who died in 1938. Lord Louis Mountbatten, as he was then styled, did not become a force in Philip's life until Philip joined the Royal Navy.
Princess Alice and Prince Andrew were the parents of four daughters and a son, Prince Philip. The third of the four daughters, Princess Cecilie married Hereditary Grand Duke Georg Donatus of Hesse and By Rhine, who was the elder son of Grand Duke Ernst Ludwig of Hesse and By Rhine, younger brother of Princess Victoria, Marchioness of Milford Haven.
Cecilie and Georg Donatus were the parents of three children: Alexander, Ludwig, and Johanna Marina. In November 1937, they were all killed in a plane crash en route to London for the wedding of Georg Donatus's younger brother, Prince Ludwig, to the Hon. Margaret Geddes.
As the plane prepared for descent, it flew into a chimney and crashed in Ostend. Everyone on board was killed. Cecilie was eight-months-pregnant and gave birth to a stillborn child during the crash.
Prince Ludwig and Margaret were married quietly the next day with Lord Louis stepping in as best man for the late Hereditary Grand Duke. The newly married Prince and Princess Ludwig returned to Darmstadt, where they adopted Johanna Marina, who had been left behind at Darmstadt. Tragically, she died on June 14, 1939 from meningitis. Prince Ludwig and Princess Margaret were very close to their British cousins. In 1964, Prince Ludwig was named as one of Prince Edward's godfathers. One of Edward's four names is Louis.
Prince William has certainly honored his family's history by naming his son, George Alexander Louis.