Nazario Renzoni was born in Figline Valdarno in 1960 and graduated in mathematics at the University of Florence with a thesis on "soft model theory". After having worked in Rome for an important software company and in Zimbabwe for the United Nations; he now lives in Bagno a Ripoli (a small town close to Florence) where he teaches mathematics and computer science in a high school. On these subjects he has published many manuals and articles, has lectured for universities (Siena, Harare, Pisa, Camerino) and cultural associations, and collaborates with the Faculty of Economics at the University of Florence.

Nazario Renzoni loves games of any kind and is particularly fond of Billiards, Backgammon, Bridge, Tarot Cards, Chess (FIDE but also ancient and heterodox), Go and various types of solitaire and logic games. With Andrea Ricci he founded in 2008 the Accademia de' Germini to rediscovery and play the Germini or Minchiate Fiorentine; on this game he has published an article on Microstoria (n. 65 - July / Sept. 2010) and has been interviewed in January 2009 during a transmission of RadioRai (Italian BroadCast) and in February 2011 on RadioTre network. In June 2010, with A. Ricci, he gave a class at the annual meeting of the Italian section of the International Playing Card Society and in 2008 wrote the handbook Il nobilissimo giuoco delle Minchiate Fiorentine containing a brief history of the game, the rules, some example hands with suggestion for the game strategy and a short bibliography.

The manual (also in a shorter English version) can be freely accessed and downloaded at http://germini.altervista.org/. Nazario Renzoni's complete bibliografy is on the web at the address: http://nazariorenzoni.altervista.org