Princess Diana's letters about William and 'naughty' Harry sell for £15,000

Letters written by Princess Diana about her children Princes William and Harry fetched just under £15,000 at an auction on Thursday.

They reveal personal family insights including Prince William's delight at the birth of his younger brother in September 1984 and how Harry was "constantly in trouble".

The princess sent them to the late Cyril Dickman, who served as a steward at Buckingham Palace for more than 50 years.

The entire Dickman collection, which includes letters from the Queen and Prince Charles, contains around 40 lots with estimates ranging from £80 to £900.

The Diana letters, split into six lots, were expected to fetch just £3,600, but went for a total of £14,900 - out-performing the auction house's expectations.

The letter, dated October 17 1992, details the princes' experience of boarding school. Credit: Cheffins Fine Art
Princess Diana discusses Harry's naughtiness and her plans to do Christmas shopping in Korea. Credit: Cheffins Fine Art

One particularly touching letter from Diana to Cyril said: "Dear Cyril, it was so very kind of you to have sent us such a lovely card, on the arrival of our small son.

"We both were greatly touched by your thoughtfulness and enormously appreciated it.

"William adores his little brother and spends the entire time swamping Harry with an endless supply of hugs and kisses, hardly letting the parents near!"

One of the letters describes William 'adoring' his little brother. Credit: Cheffins Fine Art
Another note from Diana to Cyril. Credit: Cheffins Fine Art

Some of the other items in the Dickman collection include letters, cards and photographs from various members of the Royal family.

These include notes from the Queen and Prince Philip, Prince Charles and Princess Margaret, as well as signed photograph Christmas cards, wedding cake and Maundy money.