Though the royal baby has its own "His Royal Highness" title, he will inherit Prince William's surname, Mountbatten-Windsor.
The son of William and Kate, the Duke and Duchess of Cambridge, was born Monday at 4:24 p.m. in the private Lindo Wing of St. Mary's Hospital
in London, the same place Princess Diana gave birth to William in 1982. The baby is third in line to the throne, behind grandfather Prince Charles and his own father.
The baby's name has been a source of much speculation in the months leading up to the highly anticipated birth. It has not yet been announced.
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"I do think that Prince William is quite a traditionalist — that's my feeling," Charles Kidd, editor of Debrett's Peerage and Baronetage, told Yahoo! News.
"The fact that he chose to use the royal dukedom (of Cambridge) and has followed royal precedent, I wouldn't be surprised if they use a name that is already familiar in the royal family — something that has royal associations."
Bookies have made a killing taking wagers on what the royal baby's name will be. Here are some of the top picks, according to Yahoo! News.
A popular royal name that has come to symbolize the continuity of the monarchy, with six King Georges having worn the crown since the German-born George I ascended the throne in 1714.
William is close to his father and most likely wants to honor him, experts say. Charles is also name of Diana, Princess of Wales's brother, Earl Spencer. But could be unlucky for a king: Charles I was executed and Charles II's reign featured the plague and Great Fire of London.
William and Kate also expected to acknowledge William's grandfather and the Queen's consort the Duke of Edinburgh in the names they pick. Charles and William have Philip as a middle name.
Recurring name in Kate's family tree. Middle name of her father and grandfather. Feminine form of Francis, Frances, was also Diana, Princess of Wales's, middle name.
Popular with the bookmakers. But William has a cousin James — the Earl and Countess of Wessex's son Viscount Severn. Could be used as a middle name to signify Kate's affection for her brother, the baby's uncle James Middleton.
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