Question: Chagnoald, was a bishop of Laon during the 7th century, from which collection of Germanic peoples that originated in the lands between the Lower and Middle Rhine in the 3rd century AD and eventually formed a large empire dominating much of western and central Europe during the Middle Ages?
Sentence (from "Poland in the Early Middle Ages"): Their early archeological traces belong to the Prague-Korchak culture, which is similar to the earlier Kiev culture.
Relevant evidence: No