ABSTRACT
Many Decretum (BD) and Collectio duodecim partium (CDP) canons differ from their formal sources. Scholars have debated how CDP and BD came to share so many canons. This chapter focuses on the treatment of secular law in BD and CDP, in order to study about CDP’s use of BD. BD’s treatment of secular law is a distinctive hallmark of the collection. The chapter explores whether CDP has its own canons, not in BD, in which such attributions and internal citations to secular justice and law were excised. It tests the possibility of an X collection in another way: by investigating the treatment of secular law in a cross-section of canons in CDP and BD. After studying the shared textual alterations in CDP and BD across a cross-section of texts, the chapter concludes that an intermediate collection was not necessary in order to explain their relationship.
