LONDON (AP) _ Princess Diana's brother plans to open a museum dedicated to her memory in a sprawling 18th-century stable block on the family's ancestral estate.

The museum will have rooms tracing Diana's life _ from childhood to her 1981 marriage to Prince Charles, their 1996 divorce, her tragic death in a Paris car crash Aug. 31, her funeral and the impact of her life.

The biggest space will be devoted to Diana's work on behalf of charities and public causes, which ranged from banning land mines to AIDS prevention.

Plans for the museum went on display this week at Daventry district council in the English Midlands where Althorp, Diana's ancestral home, is located. The council must approve the plans because the stable block is considered to be architecturally significant.

The stable block was built around 1730 to an elegant Palladian design and has 50 rooms. It originally housed 100 horses and 40 grooms.

It currently houses estate offices and a tea shop where, The Daily Telegraph said, the princess' father used to help serve tea.

It will need to be substantially renovated. Newspapers this week said the cost of the museum will exceed $1.6 million.

Diana is buried on an island several hundred yards from Althorp House and the stable building.

Her brother, Earl Spencer, will allow the public to visit Althorp from July 1 to Aug. 30 to see the island at a distance, although they will not be allowed onto it. More than 152,000 visitors have paid $15.50 to visit this summer.