The King author Christopher Andersen has revealed the rider of Charles III, Page Six reported.

“He still travels with a childhood teddy bear,” royal biographer Christopher Andersen claimed to Entertainment Tonight in a Tuesday, November 1, interview. “He’s had it since he was a very small child. The only person who’s been allowed to mend King Charles’ teddy bear is his childhood nanny, Mabel Anderson, who he remains very close to.”

The book also says that the king insists on traveling with a 'custom toilet seat' and takes a personal chef with him on any trip.

The royal historian, however, asserts that the king “wants what he wants when he wants it.”

Christopher Andersen also revealed the royal family's funniest quirk.