The bottle of 1937 Moet and Chandon went under the hammer at Charterhouse auctioneers in Sherborne and was bought by a Swedish television company.
But champagne does not age well and the tipple is unlikely to be drinkable.
The bottle was given to solicitor Nigel Wilson by a soldier as a thank you gift for some legal work 15 years ago.
Charterhouse valuer Chris Copson said they believed the bottle was retrieved by a soldier from the ruins of the Reich Chancellery in Berlin after the Nazis were defeated in May 1945.
"They made their way into the Chancellery, the Russians had been there first, there was a lot of looting and the soldier and members of his unit took themselves a little souvenir of the event," said Mr Copson.
"There was a rumour that some of the bottles of champagne had been poisoned by injecting through the cork which might be why the soldier never actually drank it.
"Champagne doesn’t particularly age well anyway, but in light of that information I would say it’s extremely unlikely that anyone would want to drink it anyway."
In September 2006, 21 paintings and two pencil sketches from Hitler’s collection were auctioned by an anonymous owner and fetched £118,000.
The owner was encouraged to put the works up for auction following the successful sale of a watercolour painting the previous year in Cornwall for £5,200
Via: BBC News