The large neighbouring tribes of the Baiuvarii and Thuringi, who lived between the Alps and the River Elbe from the fifth to eighth centuries, are the focus of this book. Using a variety of different sources drawn from the fields of archaeology, history, linguistics and religion, the contributions discuss how an ethnos, a gens, or a tribe, such as the Baiuvarii or Thuringi, might appear in the written and archaeological evidence. For the Thuringi tribal traditions started around the year 400 or even earlier, while the Baiuvarii experienced a much later ethnogenesis from both immigrants and a local, partly Romance population in the mid-sixth century. The Baiuvarii and Thuringi are studied together because of the astonishing connections between their two settlement landscapes. In the context of the row-grave civilisation the Thuringi belonged primarily to the eastern, the Baiuvarii to the western sphere. The kingdom of the Thuringi was assimilated into the Merovingian Empire after their defeat by the Franks in the 530s, which also changed their burial customs to the style of the western row-grave zone. In contrast, the Baiuvarii were not "Frankicised" until more than a century later and their grave customs remained more typically "Bavarian". The chapters highlight typical features of each region and beyond: settlements, agricultural economy, law, religion, language, names, craftsmanship, grave goods, mobility and communication.