ABSTRACT
In 1582 the Viceroy of Naples Don Pedro Giron commissioned the arch. Giovan Vincenzo Casale to built a new chivalry barrack.After about 30 years, the viceroy Don Pedro Fernandez de Castro appointed the arch. Giulio Cesare Fontana to transform and complete the building, in order to obtain a university head office. A Big Hall, having dimensions of 23 × 50 m in plan and volume of about 20,000 m3, was designed as library and was placed at the first floor of the building.
