The evening gown that Princess Diana of Wales wore while she danced with John Travolta at the White House is expected to fetch between £200,000-£300,000 when it goes up for auction in London today. The dress, as well as nine other evening gowns worn by the late Princess, will be sold at Kerry Taylor Auctions.

The gowns are expected to fetch up to £830,000 in total, the most expensive of which is the Victor Edelstein designed midnight blue velvet evening gown worn by Diana during a White House dinner hosted by President Ronald Reagan in 1985. It's also considered the most famous of the batch, after Diana wore it during her dance with Saturday Night Fever actor John Travolta during a dance across the White House floor. Travolta glided across the dance-floor and twirled the Princess around, much to the delight of the photographers covering the event. Though not a state visit, it was one of the most memorable trips that Diana and Prince Charles made to the U.S., with some 4,000 Americans turning out to watch the Royal couple's plane land in Washington. 

The collection of dresses were last seen together at auction in New York in 1996, just two months before Diana was killed in a car crash in Paris. 

"As a group, it's fascinating to see the change from ingénue to style icon," said auctioneer Kerry Taylor, "You follow her life through clothes."

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