Columbia subject headings:
Europe--History--1517-1648--Congresses.
Philip II, King of Spain, 1527-1598--Congresses.
Spain--History--Philip II, 1556-1598--Congresses.
Harvard subject headings:
Europe--History--1517-1648--Congresses.
Philip II, King of Spain, 1527-1598--Congresses.
Spain--History--Philip II, 1556-1598--Congresses.
Princeton subject headings:
Philip II, King of Spain, 1527-1598--Congresses.
Spain--Civilization--1516-1700--Congresses.