After more than five hundred years, thousands of books and millions of words written about Leonardo da Vinci, there are not many mysteries left surrounding him.

In 1961, when the newly elected American President John F. Kennedy made an official visit to Paris, he didn’t impress French President Charles de Gaulle but Jackie (née Bouvier) America’s First Lady certainly impressed André Malraux, French minister of cultural affairs.

Hitler’s invasion of Europe gave him, Goering, Goebbels, Ribbentrop et al Carte Blanche to plunder priceless works of art.

On 25 August 1939 the Louvre in Paris closed its doors for three days to crate up its collection. It was so secret, the government was not told.

Until 1911, when the portrait of Mona Lisa was stolen from the Louvre in Paris, very few knew anything about it.

After more than five hundred years surely everything there is to be known about the most famous painting in the world is known? Isn’t it? No.