Franks and Northmen explores the full spectrum of Franco-Scandinavian interaction, examining not just violence but also less well-known relationships centered on acts of diplomacy, commerce, and mission and demonstrating the transformative nature of cross-cultural encounter during the Viking Age. In the year 777, the Frankish sources mention the Northmen, better known to most as the Vikings, for the first time. By the tenth century these Northmen, once a mysterious people on the borders of the Carolingian Empire, would be a familiar presence in the Frankish world. As raiders and pillagers, the Vikings would fill the pages of Frankish authors, leaving a legacy that continues to fascinate even to the twenty-first century. But a closer look at sources, both textual and material, reveals that the relationships between Franks and Northmen were far more complex and multifaceted than a rigid focus on Viking violence might suggest. Merchants carried goods across the North Sea, missionaries encouraged new ways of understanding the world, and Franks and Northmen formed relationships and bonds even amidst conflict and violence. This study is a useful resource for both students and specialists of central and northern Europe in the early medieval period.