Columbia subject headings:
Guelf, House of.
Monasticism and religious orders--Germany--History--16th century.
Harvard subject headings:
Lower Saxony (Germany)--Church history.
Lutheran converts--Germany--Lower Saxony--History--16th century.
Monasteries--Germany--Lower Saxony--History--16th century.
Reformation--Germany--Lower Saxony--16th century.
Princeton subject headings: