He's only a few hours old, but the newest royal baby is already being marked for greatness.

The Duchess of Cambridge has given birth to an eight pound, seven ounce son at London's St Mary's Hospital.

He's already made his first public appearance on the way home from hospital.

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Meanwhile, Kiwiana and homemade clothes are in the basket of gifts for the new royal baby.

Jacinda Ardern told Mike Hosking she'll be giving the unnamed child a range of children's books.

"Hairy Maclary is already a Royal Family favourite which is lovely, got a blanket made from New Zealand wool and I've chucked in a personal gift which is a little romper that my sister in law made that's got a buzzy bee lining in it."

LISTEN ABOVE AS JACINDA ARDERN SPEAKS WITH MIKE HOSKING