Columbia subject headings:
Cities and towns, Medieval--France, Southwest--Growth.
France, Southwest--Description and travel.
France--History--Medieval period, 987-1515.
Vernacular architecture--France, Southwest--History.
Harvard subject headings:
Aquitaine (France)
Architecture, Medieval--France.
Béarn (France)
Cities and towns, Medieval--France.
Languedoc (France)
Princeton subject headings:
Cities and towns, Medieval--France.
City planning--France--History.
Fortification--France.