Certainly, between the late 17th and early 18th centuries, the feudal lord possessed large grain reserves stored in the dammusi of the castle-palace, in the warehouses beneath the baronial palace, and in the warehouse located in Piazza Vecchia. According to research by local scholars, the area where the granary of the Prince of Palagonia, Marquis Nicolò Antonio Lucchese, now stands — along with its immediate surroundings — was, since the early decades of the 17th century, occupied by a considerable number of buildings used for storing and possibly processing grain. These were mostly small warehouses, underground grain silos, small watchtowers for guarding the cereal reserves, and perhaps even a water mill.
To centralize the storage of his estates’ grain production in a single location, the Prince of Palagonia, Marquis of Delia, built in 1740 the great granary that stands in Piazza Castello, designed to hold up to 1,000 salme of wheat.
From a notarial deed dated 1743, we learn that this was a newly constructed building, replacing the old Lucchese warehouse located in Piazza Vecchia.