In a form of digital copies, there are valuable and interesting collections of manuscripts recorded. There are letters of writers and scholars to Józef Wiśniowski, document of the archbishop Jan Rzeszowski - 1433, proving the fittings of the church in Buszcza village; privilege of organizing market fairs in Łańcut from 1726, issued by king August II; the Sejm speeches from the eighteenth century.
Solecki, Łukasz (1827-1900)
Solecki, Łukasz (1827-1900)
Jabłońska, Helena (1864-1936)
Lanckoroński, Stanisław Procewicz, Piotr
Trzciński, Teofil (1878-1952)