Columbia subject headings:
Mary, Blessed Virgin, Saint--Art--Congresses.
Mary, Blessed Virgin, Saint--Devotion to--Europe, Eastern--Congresses.
Mary, Blessed Virgin, Saint--Devotion to--Political aspects--Europe, Eastern--Congresses.
Religion and politics--Europe, Eastern--Congresses.
Harvard subject headings:
Christianity and politics--Europe, Central--History--Congresses.
Christianity and politics--Europe, Eastern--History--Congresses.
Mary, Blessed Virgin, Saint--Apparitions and miracles--Europe, Central--Congresses.
Mary, Blessed Virgin, Saint--Apparitions and miracles--Europe, Eastern--Congresses.
Mary, Blessed Virgin, Saint--Devotion to--Europe, Central--History--Congresses.
Mary, Blessed Virgin, Saint--Devotion to--Europe, Eastern--History--Congresses.
Princeton subject headings: