The University Library of Graz administers the personal papers and estates of about 90 personalities. Many of them worked at the University of Graz or were active as private researchers, others played an important role in Styrian cultural life. Particularly noteworthy are the estate of the linguist and Romance scholar Hugo Schuchardt, which is being intensively researched by the Hugo Schuchardt Archive, and the estate of the philosopher Alexius Meinong, the founder of the "Graz School". Among the oldest objects are the letters of the diplomat and Orient researcher Anton Graf Prokesch von Osten, who left behind travel descriptions and historical works of great cultural and historical value.
The Pre- & Nachlässe can be found on unipub under Digi | NACH - Pre- & Nachlässe.