that the apprentice fell and broke his leg. Experts Martin Kemp and Liana Bortolon agree that there is no evidence of such a test, which is not mentioned...

attributions and search for works which have been recorded but never found. Liana Bortolon, writing in 1967, said: Because of the multiplicity of interests that...

Vinci Zöllner 2019, p. 20. Giorgio Vasari, Lives of the Artists p. 254 Bortolon, Liana (1967). The Life and Times of Leonardo. London: Paul Hamlyn. His birth...

took 500 years to make". National Geographic Society. April 30, 2019. Bortolon, Liana (1967). The Life and Times of Leonardo. London: Paul Hamlyn. Wallace...