Two days after the Royal Baby was born, Prince William and Kate Middleton, has officially named their first born.
Here's some of the history behind the young prince's three names (by Monica Sarkar for CNN):
1. George - the front-runner before the announcement, according to many UK bookmakers -- was the name of Queen Elizabeth's father, King George VI, who reigned from 1936 until his death in 1952. He assumed the throne on the abdication of his brother, Edward VIII. His life was depicted in the Oscar-winning movie "The King's Speech." George I, born in Germany, became king in 1714. He was followed by a line of kings with the same name, including George III, who was known for his bouts of insanity. Other historical Georges: composer George Frideric Handel (1685-1759), first president of the United States George Washington (1732-1799), and the Pacific explorer George Vancouver (1757-1798). Authors Mary Anne Evans and Eric Arthur Blair also chose George as their pen names: George Eliot (1819-1880) and George Orwell (1903-1950) respectively.
2. Alexander - Alexander III of Macedon (356-323 B.C.), better known as Alexander the Great, courageously ruled and conquered many parts of the world before his untimely death at age 32. The name "Alexander" is a feature of the Dutch royal family: Willem-Alexander ascended to the throne after the abdication of his mother Queen Beatrix earlier this year. Other historical Alexanders: English poet Alexander Pope (1688-1744), American statesman Alexander Hamilton (1755-1804), Scottish-Canadian explorer Alexander MacKenzie (1764-1820), Russian poet Alexander Pushkin (1799-1837) and Alexander Graham Bell (1847-1922), the Scottish-born inventor of the telephone.
3. Louis - Louis was the first name of Lord Mountbatten, uncle of George's great-grandfather Prince Philip, Duke of Edinburgh, and mentor to Prince Charles. He was killed by the IRA while holidaying in Ireland in 1979. Louis XVI was the king of France from 1774 until 1792, when he was found guilty of treason after the revolution and executed in 1793. Other historical figures named Louis: French scientist Louis Pasteur (1822-1895); Métis leader Louis Riel (1844-1885), who led a rebellion against Canada; and Scottish author Robert Louis Stevenson (1850-1894), who wrote "Treasure Island" and "Dr. Jekyll and Mr. Hyde."
Britain's Prince William and his wife Kate were celebrating on Monday, July 22, after Kate gave birth to a baby boy weighing 8lbs 6oz (3.8 kilos), providing the world's most famous royal family with a future king.
The former Kate Middleton, 31, spent just over eight hours in labour after she and William went around dawn to the private wing of St Mary's Hospital in London.
"Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 4:24 pm (1524 GMT)," Kensington Palace said in a statement just over four hours afterwards.
Cannon fire rang out across London on Tuesday, July 23, with separate army units letting off a 62 gun salute at the Tower of London and 41 gun salute at Green Park.
Prince William and Catherine, the Duchess of Cambridge, emerged from St. Mary's Hospital in London on Tuesday evening to give the public its first view of the new heir to the British throne.
Catherine and William took turns holding the child, wrapped in a cream-colored blanket, as they waved to well-wishers outside.
On their way out, they walked out down the same steps where Diana, Princess of Wales, and Prince Charles gave the world its first look at Prince William 31 years ago.
Prince William was created the Duke of Cambridge on his wedding day in April 2011 and his wife is the Duchess of Cambridge.
Kate and William's firstborn will be the 3rd in line to the British throne, taking the place of Prince Harry, William's younger brother, in the succession line.
The baby will be christened as a member of the Church of England -- which it is set to lead one day -- wearing a replica of the intricate lace and satin gown made for Queen Victoria's eldest daughter in 1841.
Royal babies usually have five or six godparents, people who agree to support the child particularly in their faith, and William's brother Prince Harry and Catherine's siblings James and Pippa Middleton are likely contenders.
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