A lock of hair believed to have belonged to Leonardo da Vinci is set to undergo DNA testing, as Italians mark the 500th anniversary of the artist's death https://t.co/EYQVBwULmZ https://t.co/RhbmhJhoBj

A lock of hair believed to have belonged to Leonardo da Vinci is set to undergo DNA testing, as Italians mark the 500th anniversary of the artist's death https://t.co/EYQVBwULmZ https://t.co/RhbmhJhoBj (via Twitter http://twitter.com/CNN/status/1123483371236134912)