Giorgio Vasari, Lives of the Most Excellent Painters… (1850)
“ The same artist has executed the bust of Francesco del Nero in marble, a portrait taken from the life, and so good a one that it does not seem possible to produce a better, from all which we may fairly hope for him the most distinguished success; nay, there can be no doubt but that he will ultimately attain to the highest point of perfection in our arts. Daniello was a well-conducted and upright man, but so profoundly intent on his studies that he gave but little thought to the remaining circumstances of his life. ”
