Kate Middleton's marriage to Prince William will see her become the third most beautiful royal in history, pushing Diana, the late Princess of Wales, into fourth place, according to a poll.

最新调查显示，凯特·米德尔顿嫁给威廉王子后，会在王室成员美女榜上排名第三，而已故威尔士王妃戴安娜将排至第四。

Clockwise from top left; Grace Kelly, Princess Rania, Princess Diana and Kate Middleton.
Miss Middleton, who will become part of the Royal family when she marries on April 29, came third in the survey, one place ahead of Diana, Princess of Wales.

Princess Grace of Monaco - also known as the Oscar-winning actress Grace Kelly - topped the list, with a 91 per cent approval rating, closely followed by Queen Rania of Jordan, on 90 per cent.

Miss Middleton had an approval rating of 84 per cent, with the late（已故的） Princess Diana close behind on 82 per cent.

The survey of 127,000 people was carried out by dating website BeautifulPeople.com.

Prince Carl Philip of Sweden came top among royal men, while Princes Harry¹ and William took the fourth and fifth spots respectively.

The brothers' father, the Prince of Wales, was voted the 10th best-looking royal male.

The Princess Royal was the lowest ranking royal in the beauty stakes, according to the poll.

Greg Hodge, managing director of BeautifulPeople.com, said: ''Kate Middleton is no typical beauty.

''But her style, deportment and immaculate（完美的） grooming²（修饰） have clearly won her an army of admirers, propelling（推动） her to the same heights as Princess Grace and Queen Rania.

''I think the world is breathing a sigh of relief that the British monarchy³ can only get better looking in generations to come.''

The survey's findings are as follows:

Top 10 royal beauties: women

1. Princess Grace of Monaco

2. Queen Rania of Jordan

3. Princess in waiting, Kate Middleton

4. Diana, Princess of Wales

5. Princess Charlotte of Monaco

6. Princess Gayatri Devi

7. Princess Madeline of Sweden

8. Crown Princess Mary of Denmark

9. Princess Margaret

10. Princess Masako of Japan