A poll taken the same day Prince Charles announced his engagement says the majority of Britons approve of his decision to marry Camilla Parker Bowles, but most prefer his eldest son be Britain's next king.

The YouGov poll, published Friday in The Daily Telegraph, said 65 per cent of respondents think the upcoming nuptials at Windsor Castle are a good idea. The number is much higher than in previous polls.

Eleven per cent of respondents had no opinion, but 24 per cent said the two shouldn't marry.

The same sentiment was shared by admirers of the late Princess Diana, who came to see the Paris tunnel where she was killed.

"Oh! He's so bad," said Han Yoon-hee of South Korea told the Associated Press.

"Unbelievable," concurred Chelsea Lu of Taiwan.

Han, 14, said she's too young to clearly remember the day Diana died, but since then she's developed strong opinions about the royal fairy-tale gone wrong.

"Charles did bad, bad things before Diana died and he had no regrets," she said.

British tourist Paul Bailey said he'd be "devastated and gobsmacked" if Camilla was ever made queen. The royal family has said she wouldn't get that title.

Still, Bailey has some sympathy for Camilla. He says the perception that Camilla caused the royal marriage to fail is unjust. "It's not fair for her to be tarred with that brush, but that's the way people see her," he said.

When respondents of the YouGov survey were asked who should succeed Queen Elizabeth II, 41 per cent chose Prince William over the 37 per cent who preferred Prince Charles. Another 19 per cent said Britain should have no monarch after the queen, and 3 per cent said they didn't know who should take the throne.

The British public also seems uneasy about Charles becoming the supreme governor of the Church of England should he become king. In the survey, 49 per cent said Charles should not be given the role. Thirty-seven per cent said he should, and 14 per cent had no opinion.

Since both Charles and Camilla are divorcees, they'll be married in a civil ceremony scheduled to take place at Windsor Castle on April 8.

With files from the Associated Press