The influence of the De XII abusiuis saeculi on ideas of royal and episcopal office in eleventh- and twelfth-century England and Germany has received surprisingly little attention. This has been the case in spite of the large number of manuscripts, surviving in both realms, and the efforts made by historians of earlier periods to establish the influence of the ninth abuse upon the political thought of both Carolingian Europe and pre-conquest England. In this chapter, my analysis of DDAS's influence proceeds in three stages. In the first section, I explore how certain phrases, some of them scriptural in origin, found in the ninth and tenth abuses (the rex iniquus and the episcopus neglegens respectively) appeared to resonate with eleventhand twelfth-century writers when they turned to the subject of royal and episcopal power, though not always in the sense found in DDAS. From the ninth abuse, I examine the formulation of the scriptural injunctions to protect strangers, orphans, and widows (aduenis et pupillis et uiduis defensor esse) as well as to judge without respect of persons (sine acceptione personarum). The royal obligation to protect those vulnerable groups has been harnessed as a litmus test for the presence of DDAS's influence. As we will see, such an argument holds only limited justification. Turning to the tenth abuse, I explore the episcopal duty to correct sin and the circumstances in which that admonition should take place; both subjects raised by DDAS through its combination of two passages from the books of Ezekiel and Matthew. I also discuss the relevance of the fifth abuse (the femina sine pudicitia) to portrayals of royal and episcopal behaviour.