Columbia subject headings:
Beguines--Belgium--Biography--Early works to 1800.
Mary, of Oignies, 1177-1213.
Nivelles (Belgium)--Church history--Early works to 1800.
Harvard subject headings:
Beguines--Belgium--Biography--Early works to 1800.
Mary, of Oignies, 1177-1213.
Nivelles (Belgium)--Church history--Early works to 1800.
Princeton subject headings: