De László was conscious of his reputation during his lifetime and amassed an extensive archive related to his life and work. The de Laszlo Archive Trust has donated more than 15,000 items of correspondence and press cuttings to the Heinz Archive and Library at the National Portrait Gallery in London. This collection includes important letters between the artist and some of the most interesting and significant people of the period: presidents, monarchs and courtiers, statesmen and diplomats, soldiers, scientists and churchmen, as well as artists, writers and musicians.

A significant amount of material remains in the Catalogue Raisonné office and continues to be indexed and added to our archive database.