Ellbogensee
Although most of the lake is in the district of Mecklenburgische Seenplatte in the state of Mecklenburg-Vorpommern , a portion of its southern shore is in the state of Brandenburg . 
<triplet> Mecklenburgische Seenplatte <subj> Mecklenburg-Vorpommern <obj> located in the administrative territorial entity <triplet> Mecklenburg-Vorpommern <subj> Mecklenburgische Seenplatte <obj> contains administrative territorial entity <subj> Brandenburg <obj> shares border with