The guessing game is over.

Ever since Kensington Palace announced the Duchess of Cambridge was expecting her third child, people have been attempting to guess the name of the third royal baby. There were a number of favourites in the running including Arthur, James and Albert and those who had the name right are sure to be delighted with themselves. And now we finally have the name. Announced on Twitter right now, The Duke and Duchess has named their baby Louis Arthur Charles.

The Duke and Duchess of Cambridge are delighted to announce that they have named their son Louis Arthur Charles.

The baby will be known as His Royal Highness Prince Louis of Cambridge. pic.twitter.com/4DUwsLv5JQ — Kensington Palace (@KensingtonRoyal) April 27, 2018

The little boy, a brother to Prince George and Princess Charlotte was born on Monday morning just after 11 am. Weighing 8lbs 7oz, the news was announced to the world at 1 pm via social media in a series of tweets.

Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 1101hrs.

The baby weighs 8lbs 7oz. The Duke of Cambridge was present for the birth. Her Royal Highness and her child are both doing well. — Kensington Palace (@KensingtonRoyal) April 23, 2018

The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, Prince Harry and members of both families have been informed and are delighted with the news.

— Kensington Palace (@KensingtonRoyal) April 23, 2018

Kate, also known as Catherine, wore a red Jenny Packham dress with a Peter Pan collar to present her baby boy to the world on Monday evening, less than eight hours after giving birth. People originally thought the colour choice was because Princess Diana also wore this colour combination when leaving the hospital with Prince Harry but it turns out there's another possible reason. The 23 April marks St George's Day and the colours red and white are traditionally worn by those celebrating the feast day.