Royal Author Angela Levin has slammed Prince Harry’s “nasty” and “patronising” book Spare, saying she can’t understand how anyone could be so ghastly and petty.

“I spent a year and a bit with Prince Harry when I wrote his biography … I don’t recognise him,” Ms Levin told Sky News host Caroline Di Russo.

“It is incredibly sad how he could step down into such a cesspit of moaning and whining and complaining about the most ridiculous things.”