All the Can't-Miss Photos From the Royal Baby Debut

Fans on Royal Baby Watch Set up Camp Outside of Hospital

They're hoping the baby will come

First there were bets on if the newest member of the royal family will be a girl or a boy.

As with their two other children, the royal couple did not know whether the baby was going to be a boy or a girl.

London, Apr 24 Prince Charles voiced his joy today at the arrival of his third grandchild, as Britain waited to discover what Prince William and his wife Kate will call their new baby son.

Prime Minister Theresa May congratulated Kate and William on Twitter. The 36-year-old royal just welcomed her third child - a baby boy - with Prince William on Monday, April 23.

The couple introduced their little prince to the world just a few hours later, cradling him on the steps of St Mary's Hospital, London. "I wish them great happiness for the future".

Prince George's godparents are Zara Tindall, Prince William's cousin; Oliver Baker; Emilia Jardine-Paterson; Hugh Grosvenor, the seventh Duke of Westminster; Jamie Lowther-Pinkerton; The honorable Julia Samuel; and William van Cutsem.

Chicago Tribune reports that Arthur and James are among the favorites.

The birth was also to be celebrated with a 41-gun salute in London's Hyde Park, while 62 rounds were fired near the Tower of London.

But, William and Kate are already used to the strong personality - in fact, the newborn shares the same sign as his older sister, Princess Charlotte.

The unnamed royal baby joins his siblings - the poshly titled Prince George, 4, and Princess Charlotte, 2 - and will most likely follow suit in terms of "regal" names.

And just like that, she was back at Kensington Palace.

There is no word yet on the baby's name.

NBC News' interactive below takes a look at who's who in the monarchy and the line of succession.

John Loughrey, a veteran royal-watcher who camped outside the hospital for two weeks, said the baby would be "very good for our country and of course, Her Majesty the queen".

Latest News