▁du chy ' s ▁J unker ▁nob ility , ▁which ▁fe ared ▁losing ▁their ▁tax - ex empt ▁status . ▁The ▁nobles ▁received ▁jud g ements ▁from ▁the ▁imperial ▁court ▁in ▁Vienna ▁protect ing ▁their ▁rights ▁in ▁ 1 7 1 8 ▁and ▁ 1 7 2 5 . ▁Just us ▁Hen ning ▁B öh mer ▁became ▁ch an cell or ▁of ▁the ▁province ▁in ▁ 1 7 4 3 . ▁ ▁With ▁the ▁creation ▁of ▁the ▁General ▁Directory ▁in ▁ 1 7 2 3 ▁by ▁Frederick ▁William ▁I , ▁the ▁Duch y ▁of ▁Mag de burg , ▁the ▁Princi p ality ▁of ▁Hal ber stadt , ▁and ▁the ▁Mar gra vi ate ▁of ▁Brandenburg ▁were ▁admin ister ed ▁by ▁the ▁second ▁department ▁of ▁the ▁General ▁Directory . ▁A ▁state - cap ital ized ▁agricult ural ▁credit ▁union ▁( Land schaft ) ▁was ▁created ▁in ▁the ▁du chy ▁in ▁ 1 7 8 0 ▁for ▁the ▁exclusive ▁use ▁of ▁the ▁nob ility . ▁Control ▁over ▁the ▁Mag de burg ▁lands ▁gave ▁the ▁mon archy ▁a ▁luc r ative ▁mon opol y ▁over ▁the ▁St ass furt ▁and ▁Halle ▁salt ▁depos its . ▁ ▁The ▁est ates ▁of ▁P omer ania ▁volunt arily ▁raised ▁ 5 , 0 0 0 ▁troops ▁for ▁the ▁Pr uss ian ▁Army ▁during ▁the ▁Seven ▁Years ' ▁War ; ▁their ▁initi ative ▁was ▁dup licated ▁by ▁the ▁nob ility ▁of ▁Mag de burg ▁and ▁neighbor ing ▁provinces . ▁ ▁In ▁the ▁War ▁of ▁the ▁Four th ▁Co al ition