His name will likely be Arthur, Albert, Frederick, James, or Philip according to those "in the know." He is fifth in line for the British royal throne and weighs 8 pounds and 7 ounces. Prince William and Kate Middleton's third child has entered the world this morning at 11:01 BST after Kate was taken to St. Mary's Hospital in London late last night after going into labor. The newest little prince is said to be doing well with his mother at this time.

Many warm wishes have already been bestowed upon the couple for the newest addition to their growing family. British Prime Minister Theresa May extended her "warmest congratulations" via tweet adding, "I wish them great happiness for the future."

Sir Vince Cable, leader of the Liberal Democrats added an interesting trivia tidbit about the new baby's birthday to his congratulations in saying, "Congratulations to the Duke and Duchess of Cambridge on the birth of their son. I'm sure his older brother will be delighted he has been born on St. George's Day!"

Labour Party leader Jeremy Corbyn tweeted, "Congratulations to Kate and William on the birth of their baby boy. I wish them all the very best."

The Archbishop of Canterbury said, "Congratulations to The Duke and Duchess of Cambridge on the safe delivery of their baby, a brother for Prince George and Princess Charlotte. May God bless them and all of their children with love, happiness and health."

Royal doctor consultant obstetrician Guy Thorpe-Beeston and consultant gynecologist Alan Farthing oversaw the birth. The same medical team also delivered Prince George and Princess Charlotte. Of course, an official notice of the royal baby's birth has been posted at the forecourt of Buckingham Palace and Kensington Palace has announced that Prince William and Kate Middleton's families are both "delighted with the news."

Adding to the delighted are the people or "fans" who camped out waiting to hear the news. Champagne was flowing in the streets once the news of the birth was announced with people singing cheers and hugging.

Prior to 2013, this baby boy would have naturally been second in line after big brother Prince George to the throne. However, since a change was made in 2013 that follows birth order regardless of gender, Princess Charlotte will surpass her baby brother as the next in line.

Congratulations to the happy parents! We can't wait to find out what the baby prince's name is!