Mauro Macedonio was born in Turin in 1966; he still lives and works there. He's done technical studies and, for the last twenty years, he has been interested in modern history; particularly, he is an attentive collector of documents dating back to Napoleonic time. Furthermore, he is part of some uniformed reenactment groups.

He contributed to the musical magazines "Parole e Musica!" and "A proposito di Elvis"; then, to the essays:"Napoleone, il giovane" (Alzani Editore, 2001), "Il Contadino e la Naja" (Alzani Editore, 2004), "La rivolta dei contadini piemontesi,1796 - 1802 (Araba Fenice Editore, 2005), "I soldati dell’esercito napoleonico del Dipartimento di Montenotte caduti e prigionieri durante la campagna di Spagna e Portogallo, 1808-1813" (Atti e Memorie della Società Savonese di Storia Patria, n.s., vol. XLII, Savona 2006) , "Il Campo d'Aviazione di Gonars, 1915-1917" (Edizioni Saisera, 2007). Lastly, he edited the volume “Carissime memorie del mio diletto padre Pietro Madalena, alfiere di marina, 1806 - 1814” (Società Italiana di Storia Militare, 2013).

Since 2008, he has been focusing on the examination of the documents regarding the Sant'Elena decorated soldiers in Piedmont in the State Archives in Turin and published on the website www.stehelene.org.