The General Archive collects material from 1880 to 1940, which may be estimated as amounting to approximately 400,000 items. The material is made up of correspondence mailed to d’Annunzio by various correspondents and thousands of admirers. The archive was organized when the Poet was still alive, with his correspondence being sorted and grouped into files. Over 140 index cards have been organized in alphabetical order by name of the correspondents (people, associations, locations), reporting their position within the archives.
Amongst the many files we wish to mention (due to the renown of the figures involved) those bearing the names of Luisa Bàccara, Italo Balbo, Arrigo Boito, Renato Brozzi, Luigi Cadorna, Costanzo Ciano, Galeazzo Ciano, Claude Debussy, Adolfo De Carolis, Eleonora Duse, Georges Herelle, Curzio Malaparte, Pietro Mascagni, Francesco Michetti, Benito Mussolini, Ugo Ojetti, Vittorio Emanuele Orlando, Giovanni Pascoli, Ildebrando Pizzetti, Giacomo Puccini, Ruggero Ruggeri, Guido Treves and his publishing company, Augusto Turati, Paul Valéry, in addition to those containing correspondence with his family and with the Italian Royal Family.