Princess Bea has had the last laugh, and raised a huge amount for charity.
Around 40 bidders competed in the auction to get hold of the Philip Treacy headpiece, which even got it's own Facebook page after the royal wedding day.
The leading bid on the auction website yesterday stood at £75,110 but the unusual hat went for £81,100 earlier this evening.
Suggested For You
SUBSCRIBE AND FOLLOW
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements.Learn more