It caused a stir at the royal wedding and became an instant internet sensation.
Now, it has emerged that Princess Beatrice's blush-coloured fascinator is set to go up for auction.
The 22-year-old's mother, Sarah Ferguson, revealed the news on The Oprah Winfrey Show.
"She's putting it up on eBay to auction it for UNICEF and for children in crisis," she said.
The designer of the headgear, renowned London milliner Philip Treacy, has spoken out about the controversy that followed Beatrice's appearance on April 29.
He said that the Princess looked "gorgeous and beautiful".
Sarah also opened up to Oprah about her sadness at not being invited to the wedding.
Photo: © Rex