Prince William & Kate Name the Royal Baby

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One day after leaving the hospital with their newborn son, Prince William and Kate Middleton have named the royal baby! 

The news came Wednesday in an official statement from Kensington Palace: "The Duke and Duchess of Cambridge are delighted to announce that they have named their son George Alexander Louis. The baby will be known as His Royal Highness Prince George of Cambridge."

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The royal baby was born Monday afternoon and introduced to the world on Tuesday when William and Kate emerged from London's St. Mary's Hospital carrying their son, who was swaddled in a white blanket.

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There have been six previous reigning British monarchs with the traditional name George -- which was the sovereign name of Queen Elizabeth II's father, George VI, and is also a middle name of William's father, Prince Charles.

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Alexander is a popular name in Scotland -- where Alexander III was regarded as one of that country's greatest rulers -- while Louis is also a favorite in Britain and was the name of Lord Mountbatten, the uncle of the Duke of Edinburgh, who is married to Queen Elizabeth II.