Nordgau was a seventh century margraviate in the northern part of the Duchy of Bavaria, its chief cities were Nuremberg and Bamberg. In Merovingian times the Franks occupied it.
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March of the Nordgau
Berenger I of Nordgau - Adelheid of Dießen ca 1030
Gebhard I van Sulzbach - Adelheid van Nordgau ca 1050