Nord-Audnedal
It was located along the river Audna in the Audnedalen valley in the present-day municipalities of Lyngdal and Lindesnes in Agder county . 
<triplet> Audnedalen <subj> Audna <obj> located in or next to body of water <triplet> Lyngdal <subj> Agder <obj> located in the administrative territorial entity <triplet> Agder <subj> Lyngdal <obj> contains administrative territorial entity