▁Polish - P omer an ian ▁border ▁region . ▁In ▁ 1 4 0 7 ▁German ▁and ▁Polish ▁rob ber ▁bar ons ▁conquer ed ▁the ▁castle ▁and ▁exp elled ▁the ▁kn ights . ▁The ▁rob ber ▁bar ons ▁made ▁the ▁castle ▁the ▁starting ▁point ▁of ▁their ▁brig and age , ▁until ▁the ▁burg h ers ▁of ▁Draw sko ▁defeated ▁them ▁in ▁ 1 4 2 2 . ▁In ▁ 1 4 3 8 ▁the ▁Te ut onic ▁Kn ights ▁arranged ▁it ▁so ▁that ▁Poland ▁could ▁take ▁control ▁of ▁the ▁region , ▁which ▁it ▁re organ ised ▁as ▁the ▁Star ost wo ▁Dra him skie , ▁with ▁Dra him ▁as ▁its ▁capital , ▁within ▁Gre ater ▁Polish ▁Poz na ń ▁Vo iv odes hip . ▁▁ ▁In ▁ 1 6 5 7 ▁King ▁John ▁II ▁Cas imir ▁of ▁Poland ▁pa wn ed ▁this ▁Poz nan ian ▁star ost wo , ▁including ▁Dra him , ▁to ▁the ▁" Gre at ▁Elect or " ▁Frederick ▁William ▁of ▁Brandenburg ▁in ▁return ▁for ▁a ▁credit ▁by ▁the ▁Tre aty ▁of ▁B rom berg . ▁In ▁ 1 6 6 8 ▁Frederick ▁William ▁acquired ▁the ▁star ost wo ▁as ▁his ▁personal ▁estate ▁and ▁inv ested ▁a ▁b ail iff ▁with ▁its ▁administration . ▁In ▁the ▁course ▁of ▁the ▁First ▁Part ition ▁of ▁Poland ▁in ▁ 1 7 7 3 , ▁Dra heim ▁was ▁incorpor ated ▁into ▁the ▁Brandenburg ian ▁Ne um ark ▁region ▁within ▁the ▁Kingdom ▁of ▁Pr uss ia . ▁Following ▁a ▁Pr uss ian ▁administrative ▁reform ▁it