Columbia subject headings:
Harvard subject headings:
Gondomar, Diego Sarmiento de Acuña, Conde de, 1567-1626.
Great Britain--Foreign relations--Spain--Early works to 1800.
Great Britain--Politics and government--1603-1714--Early works to 1800.
Netherlands--History--Eighty Years' War, 1568-1648--Early works to 1800.
Spain--Foreign relations--Great Britain--Early works to 1800.
Princeton subject headings:
Spain--Foreign relations--1516-1700.