Martin Keene/PA Wire
A candid letter written by Prince Charles after his separation from Princess Diana is to be auctioned.
The handwritten note, on Royal Yacht Britannia crested paper, reveals his hopes of people appreciating "the things I try to do after I am dead".
Charles writes that it has been "pretty awful having to live through all the misinterpretation and the flak" following the break-up.
"Perhaps it is part of the test I have to go through in order to come out the other side having been tempered in the fire."
The letter, to interior designer Dudley Poplak, is dated December 11, 1992 - two days after the couple's separation was formally announced.
It will be sold by Dominic Winter Auctioneers in South Cerney, near Cirencester, Gloucestershire, on Wednesday, along with a note from Princess Diana.
Auctioneer and senior valuer Chris Albury said there had been many letters from Princess Diana sold over the years, mostly short thank you notes.
"Emotionally charged letters like this, which reveal her genuine interest in new age philosophy against a backdrop of a failing marriage are very collectable.
"Even more unusual is to have a very personal and revealing letter from Prince Charles to the same friend candidly expressing his pain and frustrations too."
Charles ends the letter to Poplak, who died in 2005, by writing: "At least you understand, which is hugely reassuring and comforting".
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