Daniel Radcliffe, Robert Pattinson and Keira Knightley are among the wealthiest Britons under the age of 30,the Sunday Times Rich List reveals.

The three actors all made the top ten Young People list, which excludes those who made their fortunes in sports.

Mr Radcliffe, the 21-year-old star of the Harry Potter movies, was the highest ranked celebrity in the list, equalling his 2010 fifth place position but with an increased wealth of £48 million.

Robert Pattinson, star of the Twilight series, is joint eighth in the list at £32 million, up from 14th place last year.

He overtakes Keira Knightley, whose wealth has increased by £2 million to £30 million this year but who now ranks at number 10, down from joint 7th last year. The top four wealthiest young people or family groupings all feature in the main Sunday Times Rich List.

The top ten are:
1. Thomas Persson (family wealth), age 24, £700m (fashion - H&M)
2. Robin Arora (family wealth), age 26, £343m (discount stores - B&M Bargains)
3. Fawn, age 26, and India Rose James, age 20, £302m (property)
4. Arthur Landon, age 29, £200m (inheritance)
5. Daniel Radcliffe, age 21, £48m (films)
6. Lord Mostyn, age 26, and family, £44m (land)
7. Sam Barnett, age 27, £40m (internet)
8. Sean O’Connor, age 30, £32m (property and investment)
8. Robert Pattinson, age 24, £32m (films)
10. Keira Knightley, age 26, £30m (films)