As the Western Roman Empire collapsed, many Germanic kingdoms took it’s place. Examples include the Merovingian dynasty. Interestingly, the Roman empire essentially held to it’s nature as a “res publica” because of it’s many urban conglomerations. Life in the cities used to be lived a lot in public. One could be held accountable by one’s neighbors.
On the other hand, in the Germanic kingdoms, life apparently took a rural turn. As the Romans elites gave up their public spirit and faded away, a different sort of tendency took root which valued privacy and private property more than sometimes even human lives. All along, however, it is interesting to note that the Germanic kingdoms continued to hold the Roman empire in the greatest esteem.