Columbia subject headings:
Columba, Saint, 521-597--Influence--Congresses.
Ireland--History--Congresses.
Ireland--Relations--Scotland--Congresses.
Scotland--History--Congresses.
Scotland--Relations--Ireland--Congresses.
Harvard subject headings:
Columba, Saint, 521-597--Influence--Congresses.
Ireland--History--Congresses.
Ireland--Relations--Scotland--Congresses.
Scotland--History--Congresses.
Scotland--Relations--Ireland--Congresses.
Princeton subject headings:
Christian saints, Celtic--Congresses.
Christian saints--Ireland--Congresses.
Christian saints--Scotland--Congresses.
Columba, Saint, 521-597--Congresses.
Ireland--History--Congresses.
Scotland--History--Congresses.