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A charter of Emperor Henry III dated 17 January 1052, names him Graf im Harzgau,...
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A charter of Emperor Henry III dated 17 January 1052, names him Graf im Harzgau, Derlingau, Nordthüringgau and Balsamgau (Bernhardus comes in pagis Hartegouwe ac Derlingon partimque in Northvringon nec non Belchesheim)