Columbia subject headings:
Europe, Western--Relations--Ireland--Congresses.
Ireland--Relations--Europe, Western--Congresses.
Ireland--Relations--Scandinavia--Congresses.
Learning and scholarship--History--Medieval, 500-1500--Congresses.
Scandinavia--Relations--Ireland--Congresses.
Harvard subject headings:
Europe, Western--Relations--Ireland--Congresses.
Ireland--Relations--Europe, Western--Congresses.
Ireland--Relations--Scandinavia--Congresses.
Learning and scholarship--History--Medieval, 500-1500--Congresses
Scandinavia--Relations--Ireland--Congresses.
Princeton subject headings:
Europe, Western--Relations--Ireland--Congresses.
Ireland--Relations--Europe, Western--Congresses.
Ireland--Relations--Scandinavia--Congresses.
Learning and scholarship--History--Medieval, 500-1500--Congresses.
Scandinavia--Relations--Ireland--Congresses.