General Archive of the Crown of Aragon
The General Archive of the Crown of Aragon (Catalan: Arxiu General de la Corona d'Aragó), originally Royal Archives of Barcelona (Catalan: Arxiu Reial de Barcelona), is an archive containing the background documents of the institutions of the former Crown of Aragon and currently also contains other historical resources. The archive was originally based in the sixteenth century Palau del Lloctinent (Lieutenant Palace) in Barcelona.
Source: Wikipedia — General Archive of the Crown of Aragon (CC BY-SA 4.0)