The medieval occupation of the San Giuliano plateau, located about 75 km northwest of Rome in the province of Lazio, dates from around AD1000-1300. The geographic location of San Giuliano meant that the inhabitants of this hinterland site were subject to complex political forces stemming from interactions between the Papal States, the Holy Roman Empire, feudal lords, and emerging communes (self-governed towns). In this talk, I will discuss the spatial organization, construction, and phasing of the site, comprising the walls, dry moat, gates, tower, hall, chapel and associated cemetery atop La Rocca, the highest point on the San Giuliano plateau. I will argue that the site was intentionally destroyed just prior to the beginning of the 14th century. Along the way, I’ll discuss evidence of the lifestyles and funerary practices of La Rocca’s medieval residents, as well as how they made use of the architectural remnants left behind by the earlier Etruscan inhabitants of the site.