A batch of letters written by Princess Diana to her personal secretary, Jane Parsons M.B.E., is going to be auctioned off in April. The contents of the correspondence reveal, as the auction house puts it, an "intimate glimpse into the marriage" of Prince Charles and the late Princess.
In the letter that is sure to generate the most interest, dated August 15, 1981, Diana writes from her honeymoon, on Royal Yacht Britannia–crested paper: "The honeymoon was a perfect opportunity to catch up on sleep...." (Expect at least an entire episode of Ryan Murphy's upcoming Charles-and-Diana–focused Feud season to be spent on just this detail alone.)
Other intriguing tidbits gleaned from the letters:
— Prince William received 4,500 baby presents on the occasion of his birth (and there were a total of 24,000 thank-you notes sent out after the fact—which should make you feel deeply embarrassed about how much you dread having to write even just a single thank-you e-mail).
See photos of from Princess Diana and Prince Charles' wedding:
Princess Diana's Wedding
Princess Diana's Wedding
The Prince and Princess of Wales kiss on the balcony of Buckingham Palace after their wedding. (PA Archive)
Prince Charles, Prince of Wales and Diana, Princess of Wales leave St. Pauls Cathedral in London following their wedding on July 29, 1981. (Anwar Hussein)
Lady Diana Spencer and Prince Charles leaving St. Paul's Cathedral after their wedding rehearsal. (PA Archive)
The adorable bridal attendants group on the steps of St.Paul's Cathedral before the wedding ceremony of the Prince of Wales to Lady Diana Spencer. (PA Archive)
The Prince and Princess of Wales at the High Altar in front of the Archbishop of Canterbury, Robert Runcie, during their wedding at St. Paul's Cathedral. Look at that train! (PA Archive)
The Prince and Princess of Wales pose for a wedding portrait in Buckingham Palace after their marriage ceremony at St. Paul's Cathedral. The Princess is wearing the Spencer family tiara. (PA Archive)
The Royal couple, the Prince and Princess of Wales with their young attendants. Sitting, left to right, Catherine Cameron and Clementine Hambro. Standing, left to right, Lord Nicholas Windsor, Edward Van Cutsem, Sarah Jane Gaselee (in front of India Hicks), Prince Edward, the Prince and Princess of Wales, Prince Andrew and Lady Sarah Armstrong-Jones. (PA Archive)
The Prince and Princess of Wales on the balcony of Buckingham Palace after their wedding. (PA Archive)
The Prince and Princess of Wales in an open carriage, waiting to drive to Buckingham Palace after their wedding. (PA Archive)
The relaxed Prince and Princess of Wales on their second wedding anniversary, July 29, 1983. (AP)
TODAY -- Royal Wedding -- Aired 7/29/81 -- Pictured: Lady Diana Spencer look a-like modeling a wedding dress similar to that actually worn at the Royal Wedding -- Photo by: NBCU Photo Bank
LONDON, UNITED KINGDOM - JULY 29: Diana, Princess of Wales, wearing an Emanuel wedding dress, enters St. Paul's Cathedral on the hand of her father, Earl Spencer, for her marriage to Prince Charles, Prince of Wales on 29 July, 1981 in London, England. (Photo by Anwar Hussein/Getty Images)
29th July 1981: Formal portrait of Lady Diana Spencer (1961 - 1997) in her wedding dress designed by David and Elizabeth Emanuel. (Photo by Fox Photos/Getty Images)
LONDON - JULY 29: Diana, Princess of Wales and Prince Charles ride in a carriage after their wedding at St. Paul's Cathedral July 29, 1981 in London. Diana told of a lonely existence in her married life to Prince Charles in audio tapes aired by the U.S. television network NBC on March 4, 2004. (Photo by Anwar Hussein/Getty Images)
29th July 1981: Charles, Prince of Wales, with his wife, Princess Diana (1961 - 1997), on the altar of St Paul's Cathedral during their marriage ceremony. (Photo by Hulton Archive/Getty Images)
LONDON - JULY 29: (FILE PHOTO) Prince Charles, Prince of Wales and Diana, Princess of Wales leave St. Paul's Cathedral following their wedding July 29, 1981 in London, England. (Photo by Anwar Hussein/Getty Images)
Lady Diana, Princess of Wales and Charles, Prince of Wales are seen during their wedding at St Paul Cathedral in London 29 July 1981. (Photo credit should read /AFP/Getty Images)
Newlyweds Princess Diana and Prince Charles are escorted through London to Buckingham Palace in an open horsedrawn carriage, 29th July 1981. (Photo by Jayne Fincher/Getty Images)
The Royal couple, the Prince and Princess of Wales with their young attendants. Sitting, left to right, Catherine Cameron and Clementine Hambro. Standing, left to right, Lord Nicholas Windsor, Edward Van Cutsem, Sarah Jane Gaselee (in front of India Hicks), Prince Edward, the Prince and Princess of Wales, Prince Andrew and Lady Sarah Armstrong-Jones. (Photo by PA Images via Getty Images)
Wedding day of Prince Charles & Lady Diana Spencer, 29th July 1981, Pictured: Bridal attendants at St Pauls Cathedral, RIGHT Lady Sarah Armstrong-Jones (age 17). (Photo by Mirrorpix/Getty Images)
LONDON,UNITED KINGDOM - JULY 29: Diana, Princess of Wales and Prince Charles attend their wedding on July 29, 1981 in London. (Photo by David Levenson/Getty Images) (Photo by David Levenson/Getty Images)
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— Diana kindly wanted to ensure that her staff was not feeling "exhausted, overworked and underpaid" after William's birth. She herself felt somewhat deluged, explaining to Parsons, after her own 21st birthday, "I have never been more confused than on my birthday as presents and telegrams were pouring in for W at KP as well as my own—so at the moment I just seem to be churning out letters!"
— Diana was very happy that William was excited to see her when she returned home from a trip to Australia in 1983. (She also, uh, does not seem to necessarily have loved all the traveling . . . ) She wrote, "William recognised us instantly, which was a relief as sometimes children resent their parents leaving them! It's marvellous to be home again and hopefully we won't have to do any more travelling this year... Wishful thinking!"
— She had a lot of photos of William (O.K., this one isn't so shocking). "Recently I seem to have endless pictures of William, so it's lovely to think I'll be able to frame one of them for our bedroom," she wrote.
See more photos of Princess Diana:
Princess Diana Style Transformation
Princess Diana Style Transformation
Lady Diana Spencer, later the wife of Prince Charles, on her first birthday at Park House, Sandringham.
A very young Diana in a fancy pram.
Lady Di at age 2.
Young Lady Diana in a buttoned up dark coat.
Lady Diana at age 8, wearing a matching dress and headband.
Diana on holiday with her family, causal in a sweater and jeans.
Diana let her hair grow long during her youth, here age 10 in a wide-brimmed black hat.
Diana always had a passion for children, here at 19 working as a Nursery Assistant at a Kindergarten school.
Diana and Charles pose on the day of their engagement, showing off her diamond and sapphire engagement ring.
Diana was stunning on her wedding day, with the most glamorous dress and bouquet -- truly fit for a Princess.
The royal couple during their honeymoon in Scotland.
Diana attended an exhibition at the Victoria and Albert Museum, in a dress designed by Bellville Sassoon.
Princess Diana, pregnant and glowing at a Polo match in Windsor.
The Prince and Princess visit Wales, Diana wearing a suede beret by John Boyd and a coatdress by Arabella Pollen.
Diana was a vision in yellow as she and Charles visited a school in Alice Springs, Australia.
We're loving the pops of pink in Diana's outfit, here while watching Charles play Polo.
Diana talks with Prince Charles, who is on horseback, at a Polo match.
Diana is pretty in pink while attending the ballet Swan Lake.
Diana and a tiny Prince William leaving the Royal Yacht, the Princess in a belted plaid jacket.
Diana laughs with Nancy Reagan, the two ladies looking radiant in hues of red and white.
Diana rests her chin in her hands on the steps of her home at Highgrove.
Diana at a desert picnic in Saudi Arabia, wearing a purple and white outfit by Catherine Walker.
Diana attended Cannes Film Festival, wearing a stunning ice blue gown by Catherine Walker.
Diana was stunning at an evening function during a visit to Germany, wearing a gown by Victor Edelstein.
Princess Diana during a visit to Melbourne.
Diana and Wills at a polo club, the Princess casually dressed in a blazer with the British Lung Foundation logo on the front of her t-shirt.
Diana looked radiant in red and purple while in Hong Kong, the outfit designed by Catherine Walker.
During her visit to Hong Kong, Diana wore this stunning tiara and white dress, later known as the "Elvis Dress."
The Princess of Wales in mint on an official visit to Hungary.
Diana and her boys, attending a church service. Diana wore a pink and purple suit by Catherine Walker.
Diana wears her favorite designer once again, Catherine Walker, during an official visit in Brazil.
Diana wore this white dress and black jacket designed by Catherine Walker during a visit to Salisbury.
Diana was stunning at a banquet in Seoul, wearing the Spencer family tiara and a gown by Catherine Walker.
Diana looked lovely in this pastel suit, crouching down to speak with a young boy.
Lord Palumbo greets Princess Diana, wearing a short black cocktail dress designed by Christina Stambolian, as she atttends a gala.
Diana visited army barracks, wearing a Versace suit and a hat by Philip Somerville.
The Princess of Wales was gorgeous in this royal purple gown during a visit to Chicago.
Diana visited Washington, dazzling the entire country in this lovely white gown.
Diana was lovely in this pale blue cocktail dress by Catherine Walker, attending a charity reception.
Diana, Princess of Wales, was radiant in red during another visit to Washington, D.C.