Columbia subject headings:
Church history--Middle Ages, 600-1500.
Paris, Matthew, 1200-1259. Chronica majora.
Harvard subject headings:
Europe--Kings and rulers--Correspondence.
Great Britain--History--To 1485--Historiography.
Great Britain--History--To 1485--Sources.
Paris, Matthew, 1200-1259. Chronica majora.
Popes--Correspondence
Princeton subject headings:
Holy Roman Empire--Foreign relations.
Paris, Matthew, 1200-1259.
Paris, Matthew, 1200-1259. Chronica majora.