Princess Diana's "revenge dress" has gone on display in London ahead of its auction.
The dress became a symbol of the rancour between Britain's King Charles and Diana during the public breakdown of their marriage in the early 1990s.
Diana's appearance in it in 1994 was widely seen as a show of strength as the royal couple's separation was under the spotlight - an interest which has come back strongly this week.
Following her husband's affair with Camilla, whom he went on to marry in 2005, Diana opted for an outfit which she had in her wardrobe for years but had previously seen as too daring.
This week scrutiny of their troubled relationship has resurfaced thanks to extracts published in a forthcoming book by Diana's brother, Charles Spencer.
The dress was unveiled in Sotheby's, its first stop on a world tour that will take it to Hong Kong, Geneva and New York, underlining Diana's enduring and global allure.
It will be auctioned at its last stop in December, with a guide price of between $150,000 and $300,000.
"We can imagine it's a night where she had to decide - whether I go and what do I wear?" Morgane Halimi, Global Head of Handbags and Fashion at Sotheby's, told Reuters.
"So she decided to wear something that would make her look the most beautiful, the most powerful," Halimi added.
