Recent studies have reshaped the understanding of the early Viking Age power center, near Erritsø just a few kilometers from Fredericia in Southern Denmark. Investigations at the site, which in many ways resembles the grand royal halls at Lejre in Zealand, have revealed significant new insights into the Iron Age and Viking Age around the royal estate. Notably, Erritsø's strategic location, where all transportation routes between north, south, east, and west converge, both by land and by sea.

This anthology presents several similar sites in Northern Europe by multiple top international researchers: from Norway, Sweden, North Germany and England. Similarities and differences in time and space are examined, providing a nuanced understanding of the international power dynamics of this period. Notably, the latest research results and datings provided by the studies at Erritsø are presented. Here, the acquisition of the majority of c-14 datings and chronological modeling of c-14 data on such halls has significantly refined the dating framework. The book is the result of a research project that over the past eight years, has greatly expanded our understanding of this subject and location.