British Royal Family

What will Prince William and Duchess Kate's third baby be named?

What's in a name? A lot, when you're a member of the Royal family.

By Holly Royce

The world is already besotted with the newest member of the Royal family after Duchess Catherine and Prince William welcome their third child last night.

While bookies around the world were convinced the Duchess was expecting a daughter, the newest member of the Royal family was, in fact, a darling baby boy.

Not just any boy, the 'little' Prince has tipped the scales as the heaviest royal baby in 100 years!

Suddenly Princess Mary doesn't seem appropriate...

As the couple were leaving the Lindo Wing at St Mary's Hospital in Paddington, London, William told waiting reporters the couple were "very happy, delighted" as he fit the baby carrier into the car.

Holding up three fingers, he said, "thrice worry now," adding, "We didn't keep you waiting too long."

And when asked about the name he said, "You'll find out soon enough."

What will the new Prince's name be?

For those of us who can't wait for "soon enough," the betting odds have tipped that the newborn will be known as Prince Arthur.

Unsurprisingly, all the favourite top names are very traditional - with Arthur, closely followed by Phillip, James and Albert.

Prince Paddy, though it has a nice to ring to it, is proving to be an outsider with odds of 501/1.

We'll have to wait to know for sure.

Odds on the Royal baby name from SportsBet