The reuse of ancient tuff blocks in early medieval construction in Rome

Abstract This paper analyzes the reuse of ancient tuff blocks in early medieval architecture in Rome, in both papal and private structures. The blocks are a well-known phenomenon, but they have not yet received any focused study. Short discussions in earlier scholarship have typically described them in utilitarian terms. I first identify a pattern of targeted reuse in papal building projects. I then argue that they would also have had symbolic value for an independent papacy wanting to display power. For later private builders, I propose that the blocks became prestige materials displayed on the houses of an ever-tightening aristocracy eager to be seen within some of the city's most important monumental spaces. I consider how the city's ancient monuments and their pieces were viewed in the early medieval period and how the blocks’ ancient contexts contributed to the symbolic value that I identify in them.