The vast trove of modern art seized under Germany's Nazi regime, including works by Picasso, Matisse and Chagall, was discovered in a Munich apartment among stacks of rotting groceries, German magazine Focus reported.
Customs investigators made the find in 2011 after a 76-year-old man travelling by train from Zurich to Munich aroused suspicion at the border when he was found carrying a large, albeit legal, amount of cash.
Focus said Cornelius Gurlitt, a recluse, had funded himself by occasionally selling a painting.
More top news
The jailing of the British sailor - who was caught "red handed" - came as it emerged he is also wanted in connection with a murder in Spain.
A pregnant Brazilian woman who faced deportation is allowed to stay in Britain after a Home Office U-turn over Zika virus fears.
The off-duty police officer has been hailed after catching a brazen thief while out catching some rays with a friend in a Stockholm park.