The piece of cake was baked 17 years ago by a Lincolnshire baker and now comes in a keepsake tin with the royal monogram.
Broom said the sales may have failed due to producing a large amount of cake. This would make cooking less attractive to potential buyers. At the time, twenty bottles of cognac and more than a thousand eggs entered the cake.
According to Broom, the cake is still edible due to the large amount of alcohol. But a shopper would never eat it, he thinks. “The piece is clearly intended for a collection or as an investment.”
Another piece of cake has found a new owner earlier: a piece of cake from the wedding of Prince William and his wife Catherine in 2011 cost £390 (about 450 euros).