Couiza
Couiza , in the upper valley of the Aude , is at the foot of the hill leading to Rennes-le-Château . 
<triplet> Couiza <subj> Aude <obj> located in or next to body of water <subj> Rennes-le-Château <obj> shares border with <triplet> Rennes-le-Château <subj> Couiza <obj> shares border with