Prince William's girlfriend Kate Middleton is getting her skates on tonight to raise £50,000 for the Oxford Children's Hospital.

According to fundraisers at the hospital, she has linked up with tycoon Sir Richard Branson's daughter Holly and National Hunt jockey Sam Waley-Cohen to organise the roller disco at the Renaissance Rooms in Vauxhall, south London.

The money raised will go towards Tom's Ward, which was named after Sam Waley-Cohen's brother Tom, who died in 2004, following a battle with cancer.

Tom, from Edge Hill, near Banbury, died from a rare bone cancer aged 19, and his family have backed fundraising for the children's hospital ever since.

Alice Gosling, director of fundraising for Oxford Radcliffe Hospitals, said: "It's great that Kate Middleton and Holly Branson and their friends have organised this to raise money for Tom's Ward.

"Tom's Ward is a general surgical ward and staff care for patients from tiny babies to much older children with a variety of conditions.

"Anu Basra and Marianne Julebin, development officers for the hospital, will be going along and it should be a lot of fun. It would be great if Prince William and Prince Harry turned up."

A further £50,000 is being raised for the charity Place2Be, which provides counselling to 43,000 children and their families in 130 schools.

The children's hospital, on the site of the John Radcliffe in Headington, opened in January last year and treats 65,000 patients a year.