Prince Charles has ruled out being a 'meddling monarch' when he succeeds to the throne.
In a major documentary to mark his 70th birthday next week, the heir to the throne tackles head-on the issue of his controversial lobbying.
And he vows to stop campaigning on the environment, architecture and homeopathy as king, insisting: 'I'm not that stupid.'
Speaking for the first – and, aides insist, last – time on a subject that has dogged much of his time as Prince of Wales he says: 'I do realise it is a separate exercise being sovereign. So of course I understand entirely how that should operate.