In Irpinia, to grasp the extent to which the multiform and varied castellated density still has today, it is necessary to look at its hilly and mountainous landscapes or read the toponyms of its villages: from the recent study carried out in the Province of Avellino, there is a list of 78 castles still visible in elevation, a very high figure if you consider that the entire provincial territory is composed of 118 municipalities, for a percentage of almost 70%.

The period of study in which this research is based on Irpinia’s fortification (castles, walls, towers and defensive walls) is part of the period in which the various foreign dynasties conquered the Regnum Siciliae giving rise to a military architecture which goes from the Longobard domination (568-774) to the advent of the Normans (1130-1194) and the Swabians (1194-1268), to retrace the phases of the coming first of the Angevins (1268-1435) and then of the Aragons (1442-1503).