- 1、Aregionandformerduchyofnorth-centralGermany.Establishedinthe13thcentury,theduchybecameindependentin1918beforejoiningtheWeimarRepublic.2、anorthernborderfiefoftheduchyofAquitaine3、AregionandformerduchyofnorthernGermanyatthebaseoftheJutlandbecamead...
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