This paper presents a classification for beads of the Merovingian period (ca. A.D. 450-750) in the Lower Rhine region of Germany. Strings of beads recovered from graves are ordered by a seriation (correspondence analysis) which results in an ethnic (Roman vs. Frankish) and chronological structuring of the material. By comparing this with the chronological scheme established for the other archaeological finds, it becomes evident that the favored types of beads changed about every two generations. Besides changes in distinctive types, a development in general color preference is also observed.