This thesis explores the impact of Rome upon Anglo-Saxon politics, religion, and culture in the ninth century. From the Gregorian mission onwards, Rome helped shape the ecclesiastical and devotional contexts of Anglo-Saxon Christianity and occupied a central place in the imaginations of early English writers. Yet the extent to which these links continued into and throughout the ninth century remains obscure, with scholarship about religion and culture often treating the period as a hiatus. In political narratives, the ninth century is treated as a crucial period, and Roman involvement is most visible in this sphere. By redressing the imbalance between religion and politics, this thesis achieves a thorough appreciation of the part played by Rome in these various fields of experience, as well as showing how Anglo-Saxon writers located themselves and their pasts in relation to the city. It does so over the course of five thematic chapters, which progress from an analysis of the most fundamental issues to more imaginative ones. Chapter one examines contact and communication between England and Rome, arguing that the two areas were closely and constantly connected across the century. The second and third chapters explore the impact of Rome on religion and kingship respectively, finding that while Roman influence on the church was most pronounced in the first half of the century, in political terms the city played a significant and changing role throughout the period. Chapters four and five consider the position of Rome in Anglo-Saxon historical thought and geographical understanding, examining how writers continued to define their position in a wider Christian world with reference to the city and its past. This thesis argues that, in the ninth century, Rome continued to play an important role in English life, while also influencing Anglo-Saxon thought and experience in new and dynamic ways.