Dismantled pieces of a carved four-poster bed, which had been left in a Chester hotel car park, were sold online in 2010 for £2,200 ($au4,500) as a 19th century revival.
The buyer, a specialist dealer in four-poster beds suspected that it was older and contacted TV historian Dr Jonathan Foyle who arranged DNA testing.
The DNA test has proved that it once belonged to the King Henry VII. It is thought that the bed was made for the 1486 marriage of Henry VII to Elizabeth of York. It is highly likely that Henry VIII was conceived in the bed.
It is now valued as a national treasure at £20 million ($au41,500).