Columbia subject headings:
Harvard subject headings:
Lahn River Valley (Germany)--Church history--Sources.
Monasteries--Germany--Lahn River Valley--History--Sources.
Monasticism and religious orders--Germany--Lahn River Valley--History--Sources.
Princeton subject headings:
Lahn River Valley (Germany)--Church history--Sources.
Monasteries--Germany (West)--Lahn River Valley--History--Sources.
Monasticism and religious orders--Germany (West)--Lahn River Valley--History--Sources.