Britain's Prince Charles said on Wednesday he was not "stupid" enough to keep speaking out on contentious public issues once he becomes king in a rare interview about his future role.
The eldest son of Queen Elizabeth II -- formally known as the Prince of Wales -- has long been seen as interfering because of his private lobbying of ministers and public statements on a range of subjects from architecture to the environment.
But he told the BBC in a documentary marking his 70th birthday next week that he did not intend to be a meddling king.
"I do realise that it is a separate exercise being sovereign. So of course I understand entirely how that should operate," he said.
He added when asked if his public campaigning would continue: "No, it won't. I'm not that stupid."
British royals traditionally steer well clear of politics -- something perfected by the 92-year-old queen since her coronation in 1953.
But Prince Charles has lobbied on a variety of issues, as shown in a series of letters between him and government ministers known as the "black spider" memos.