House of Karen
The seat of the dynasty was at Nahavand , about 65 km south of Ecbatana ( present-day Hamadan , Iran ) . 
<triplet> Nahavand <subj> Iran <obj> country <triplet> Ecbatana <subj> Hamadan <obj> located in the administrative territorial entity <subj> Iran <obj> country <triplet> Hamadan <subj> Iran <obj> country