The present fortress ruin at Montségur is not from the Cathar era. The original Cathar fortress of Montségur was entirely pulled down by the victorious royal forces after its capture in 1244. It was gradually rebuilt and upgraded over the next three centuries by royal forces. The current ruin so dramatically occupying the site, and featured in illustrations, is referred to by French archeologists as "Montsegur III" and is typical of post-medieval royal French defensive architecture of the 17th century. It is not "Montsegur II," the structure in which the Cathars lived and were besieged, of which few traces remain today.