The historic territory of Verden () emerged from the Monarchs of the Frankish Diocese of Verden in the area of present-day central and northeastern Lower Saxony and existed as such until 1648. The territory managed by secular lords for the bishops was not identical with that of the bishopric, but was located within its boundaries and made up about a quarter of the diocesan area. The territory was referred to at the time as Stift Verden or Hochstift Verden, roughly equating to Prince-Bishopric of Verden. This territory described in local sources today incorrectly as Bistum Verden ("Bishopric of Verden") and, in 1648, was given the title Principality of Verden, sometimes referred to as the Duchy of Verden.