Plessur District
Plessur District ( , ) is a former administrative district in the canton of Graubünden , Switzerland . 
<triplet> Plessur District <subj> Graubünden <obj> located in the administrative territorial entity <subj> Switzerland <obj> country <triplet> administrative district <subj> Switzerland <obj> country <triplet> canton <subj> Switzerland <obj> country <triplet> Graubünden <subj> canton <obj> instance of <subj> Switzerland <obj> country <triplet> Switzerland <subj> Graubünden <obj> contains administrative territorial entity