Talk about a king-size baby.

Baby George King weighed in at 15 pounds, 7 ounces when he was born nearly six weeks ago, the BBC reported.

King George, as he’s been nicknamed by the media due to his impressive size, was born to parents Jade and Ryan King of England.

No one knew how large the little boy was going to be, the BBC said, until his head emerged during labor. His surprise size made delivery difficult and his shoulders got stuck while his mother was trying to give birth.

“There was about 20-odd doctors in the room, and that’s when it got really scary,” she told the BBC.

George went five minutes without oxygen and was only given a 10 percent change of survival.

“He’s a little miracle -- well, a big miracle, really,” Jade King, who birthed George vaginally, told the BBC. George was transferred from the hospital he was born in Cheltenham to another in Bristol, where he stayed four and half weeks before heading home upon receiving normal results from an MRI.

“It might just be that he’s a little bit slow with his learning,” his mom added. “So hopefully it’s just minor little things.”

George has only gained 1 pound since he was born and wears 3-to-6-month-size clothes. His mother reportedly had to give away the newborn-size onesies that were waiting for him at home.

He’s the second-largest baby to be born vaginally in the U.K.’s history, according to reports, with the biggest baby weighing a pound more.

Doctor’s aren’t sure what led George to be so big, Yahoo reported, but the condition medically known as macrosomia is often caused by the mother have gestational diabetes, the American Congress of Obstetricians and Gynecologists said.

Ann Bates gave birth to the biggest newborn ever, in 1879 in Ohio, when her baby weighed in at a whopping 23 pounds, 12 ounces, according to the Guinness World Records. Unfortunately, he died a day later but a 22-pound, 8-ounce baby born in Italy, in 1955, survived.