The Walls and Aqueducts of Rome in the Early Middle Ages, A.D. 500–1000

Our knowledge of the city of Rome after the fall of the Western Empire is largely determined by its position as the seat of the Papacy. Historical studies are based principally upon the Liber Pontificalis and the writings of the popes themselves, while architectural and archaeological research has concentrated on the city's numerous churches, many of which for the period A.D. 500–850 are remarkably well-preserved. The best known modern syntheses in English from each field are probably Peter Llewellyn's Rome in the Dark Ages (1971) and Richard Krautheimer's Rome. Profile of a City (1980). If we look beyond the purely ecclesiastical, however, we find very little Archaeological studies of Rome's urban infrastructure—walls, roads, bridges, aqueducts, sewers, housing—tend to stop, at the latest, with the Gothic Wars of the mid-sixth century. The lack of research, and therefore lack of data, have in turn been interpreted as a sign that early medieval Rome was a city bereft of an artificial watersupply, and of the resources necessary to maintain such structures as the Aurelianic Walls. Studies of medieval urbanism have been affected by this dearth of evidence proposing, for example, settlement models with the population of the city crowded into the Tiber bend in order to obtain water.