In this chapter we draw out the ways in which the jurisdictional practice of sovereignty creates legal relations. We ask how we should understand jurisdiction as a form of authority. This chapter engages with relations between sovereignty, territory, and jurisdiction. In Chapter 2, we situate authority, and legal authority, as falling somewhere between the reason and persuasion of equals and the forceful subordination of inferiors. Authority in contemporary thinking is closely associated with legitimate reasons for subordination. In political and moral philosophy, the exercise of authority can be viewed in terms of subordination without servility (Arendt 1961; Gaita 1999).