The Historical Archives preserves and makes accessible in a central location the archival holdings of the European Union Institutions. In addition, the HAEU collects private papers of key European politicians, high-ranking EU officials and individuals involved in the process of European integration as well as the archives of pro-European movements and other organisations with a European scope. These fonds have been deposited in Florence on specific conditions agreed by the depositor and the Historical Archives and particular rules may apply to their perusal.
Collection materials – mostly copies of archival documents from private collections, foundations and National Archives and Diplomatic Archives of Ministries of Foreign Affairs – also supplement existing holdings.
The fonds of the Archives are assembled into four separate groups: EU institutions, Individuals, Corporate Bodies, and Collections.