Deputy Prime Minister Nick Clegg has defended the Prince of Wales' right to "express himself" in the wake of his reported controversial comments about Russian President Vladimir Putin.
"I have never been of this view that if you are a member of the royal family somehow you have to enter into some Trappist vow of silence," he told BBC Breakfast.
"I think he is entitled to his views. But I don't know whether those were his views because I just don't think providing a running commentary on what were private conversations is useful to anybody," Clegg said.
Prince Charles compared the actions of Russian leader Vladimir Putin to Adolf Hitler, it has been claimed by a museum volunteer in Canada.
Prince Charles' reported comments about Vladimir Putin have thrown him into the centre of a political row - but not for the first time.