Painted portraits of former institution leaders - almost all of them painted by János Dienes - still decorate the Rector's Council Room and the corridor of the University of Debrecen's Main Building. The paintings were once part of a gallery of more than thirty portraits of the great figures of the university. The Hall of Portraits - the existence of which is attested by documents and photographs from the period - has survived only in fragments. However, research has revealed that several pieces of the collection are currently kept in the Déri Museum in Debrecen.