Medieval manuscripts are perishable objects. Whether they have degraded over time through constant use and exposure to the elements or been deliberately cut up to be reused in other fashions or sold on the collectors’ market, the fragments produced by these destructive circumstances still have much to tell modern scholars about the medieval codices of which they were once a part. Through a series of six case studies focusing on a disparate array of fragments, this essay demonstrates how scholars can use the University of Pennsylvania’s Schoenberg Database of Manuscripts to help recover the hidden histories of fragmentary manuscripts.