peyrepertuse castle is a castle in france. it is one of the cathar castles. it was built before the 11th century. it is aude, in occitanie. it is built in a strategic position, on a cliff, about 30-40m high. the castle is first mentioned in the year 806, but the site seems to have been occupied since roman times. at that time, it belonged to a catalan count. it later changed hands, first to the count of barcelona, then to that of narbonne.