It's a boy! The third royal baby made his debut on Monday, April 23, according to Kensington Palace.   

By Maressa Brown
April 23, 2018
Kate and William with baby #3
Credit: Gareth Cattermole/Gareth Cattermole/Getty Images

Kate Middleton and Prince William are parents of three! People reports that Kate was admitted to St. Mary's Hospital in London before 6 a.m. (U.K. time) in the early stages of labor on Monday, April 23. And the couple's third child, a baby boy, arrived later in the morning, according to Kensington Palace.

“Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 1101hrs,” the statement, shared on Twitter, said. “The baby weighs 8lbs 7oz. The Duke of Cambridge was present for the birth. 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. Her Royal Highness and her child are both doing well.”

Although a name has not yet been announced, Albert and Arthur are tied as the most popular options for a boy—at 12-1, according to bookmakers Ladbrokes. Royal watchers can't wait to hear what Kate and Wills' final choice ends up being—and many have gathered outside of the Lindon Wing of St. Mary's in anticipation of the royal couple making an appearance with their new addition, just as they did previously with Charlotte and George.

The little one joins big siblings Prince George, 4, and Princess Charlotte, who turns 3 next month, and is considered fifth in line to the throne. (That means Prince Harry is now in sixth place.) The Palace announced that when the baby arrived, George was at school, and Charlotte was at home at Kensington Palace.

Back on Easter Sunday, April 1, the expectant mom joined Prince William in a surprise appearance at St. George's Chapel at Windsor Castle, more than a week after carrying out her last public engagements ahead of the much-anticipated birth. Of course, all eyes were on the Duchess' baby bump.

And it was in September 2017 that Kensington Palace announced that the royals were expecting this third bundle of joy. Unfortunately, Kate did suffer from hyperemesis gravidarum—or severe morning sickness—as she did with her previous pregnancies.

But it's heartening to hear that, just as she did with her first two births, all went smoothly. Congratulations to the royal family on this beautiful new addition!