Giulio Mancini

Giulio Mancini (21 February 1559 – 22 August 1630) was a seicento physician, art collector, art dealer and writer on a range of subjects. His writings on contemporary artists like Caravaggio and Annibale Carracci remain one of our earliest sources of biographical information; his ''Considerazioni'' being an important source on art in early 17th-century Rome. Provided by Wikipedia