The new Royal baby has been named Prince Louis by the Duke and Duchess of Cambridge, it has been announced.
Their second son, who is fifth in line to the thrown, was born at 11:01 BST on Monday at the Lindo Wing of St Mary’s Hospital in London, weighing 8lb 7oz.
A tweet from Kensington Palace confirmed the baby would be known, with his full official title, as His Royal Highness Prince Louis of Cambridge.
Louis, most likely a nod to his great-great-uncle Lord Mountbatten, was not among the favourites with the bookies for the baby’s name.
Arthur had been top of the list – but this is only a middle name, with the Prince being called Louis Arthur Charles.
Louis is actually one of Prince William’s middle names, and also a middle name of his elder brother, Prince George.
Arthur is also one of the duke’s middle names, and was a middle name of King George VI – the Queen’s father.
Louis Mountbatten, who was killed by the IRA in 1979, was very close to William’s father, Prince Charles.
Last night the Duke of Cambridge told press men he and Kate were still deciding on a name, adding: “I’m working on that.”
And earlier in the week, he said mother and son were “in good form, luckily”.
He added: “Sleeping’s going reasonably well so far, so he’s behaving himself, which is good news.” However, the duke was spotted seemingly nodding off during a public appearance yesterday.