Stammesherzogtum Sachsen
In 1180 the Duchy of Saxony, to which "Buchstadihude" belonged, was conquered and dissolved. Buxtehude became part of the Prince-Archbishopric of Bremen, newly upgraded to imperial immediacy it became one of the many successor states of the Duchy of Saxony. Nevertheless, ecclesiastically Buxtehude remained part of the Diocese of Verden until Catholicism was overthrown in the Reformation with that diocese remaining vacant since 1644.