Prignitz – Ostprignitz-Ruppin – Havelland I
It is located in northwestern Brandenburg , comprising the Prignitz district , Ostprignitz-Ruppin district , and most of the Havelland district . 
<triplet> Brandenburg <subj> Prignitz <obj> contains administrative territorial entity <subj> Ostprignitz-Ruppin <obj> contains administrative territorial entity <subj> Havelland <obj> contains administrative territorial entity <triplet> Prignitz <subj> Brandenburg <obj> located in the administrative territorial entity <triplet> Ostprignitz-Ruppin <subj> Brandenburg <obj> located in the administrative territorial entity <triplet> Havelland <subj> Brandenburg <obj> located in the administrative territorial entity