Analysis of information sources in references of the Wikipedia article "History of Germany" in English language version.
These stem duchies were: Franconia [...]; Lorraine (not strictly a stem duchy but with a tradition of unity); Swabia [...] .
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: CS1 maint: multiple names: authors list (link)For on the bitterly cold night of 31 December 406, there was apparently no Roman army on guard when a host of Vandal, Alan, Suevi and Burgundian warriors, with their families and possessions, crossed the frozen Rhine and headed southwest through Gaul. This time, Rome's frontiers had been breached by barbarians who meant to stay.