The Historical Archive of Lleida (AHL) was created by ministerial order on 26 February 1952. Its first headquarters was the historic building of the Roser, a former 17th-century Dominican convent. In 2005, its current headquarters were inaugurated, located on the Illa de la Maternitat, together with the Public Library and the Diocesan and Regional Museum of Lleida.

In 1981, due to the transfer of powers from the State to the Government of Catalonia (Generalitat de Catalunya), the Department of Culture assumed the management of this archive, along with that of the provincial historical archives of Girona and Tarragona. Furthermore, as established by Law 10/2001, of 13 July, on archives and document management, the AHL is part of the Network of Regional Archives of the Generalitat de Catalunya and acts as the Regional Archive of Segrià.

It currently houses documents from the 13th to the 19th centuries. Its initial documentary core was the notarial collection of the Lleida district, as well as the historical documentation of the Provincial Delegation of Finance, among others.

We particularly highlight the documentary collection of the Lleida Intendency, which contains documents relating to the cadastre established by José Patiño after the occupation of Catalonia in the 18th century; the documentary collection of the Civil Government, especially the series of public order documents generated in the immediate post-war period; the documentary collections of Francoist organizations; the documentary series that includes the files of the Provincial Court of Political Responsibilities; the patrimonial collection of the Jover de Tàrrega family (1525-1848), and the collection of manuscripts and loose documents (1348-1848), among others.