There are hardly any written sources on Christianization in southwestern Germany during early Medieval times. From its beginning in the nineteenth century, archaeological research was concerned with the question of whether the interpretation of material culture is helpful in the study of Christianization. This article first deals with the history of research. It focuses on the question of how the main archaeological sources of Merovingian times – the Reihengräberfelder – were interpreted in terms of Christianization. Obviously several aspects were and still are the main focus of research: special objects with Christian symbols (brooches, belt buckles or the so-called Goldblattkreuze) are often vaguely interpreted as symbols of early Christianity or in some cases as a sign for the buried person being Christian. This results in the process of Christianization being dated to the seventh century. These explanations are influenced by a direct social-historical interpretation of the Reihengräberfelder. They are strongly influenced by the results of historical research. A basic discussion about the character and the significance of objects from graves in the context of debates about Christianization has not yet taken place. Thus, in the second part of the article, questions derived from contextual archaeology are raised which may enrich the discussion about the interpretation of Christianization on the basis of graves: what importance may objects with Christian symbols have, if considered in the context of their ritual deposition and their associated finds? Do the Medieval graves provide information about the world of the living at all? Or how is ideology manifested within them? Is it at all, therefore, possible to describe them as testimonies of a process of Christianization? The use of carefully chosen sociological, ethnographical or historical analogies is crucial for the future development of the discussion. Furthermore, it is important to view the topic from the perspective of two analogies: analogies of the archaeological context as well as of processes of Christianization.