Columbia subject headings:
Harvard subject headings:
Essex, Robert Devereux, Earl of, 1566-1601.
Great Britain--History, Military--1485-1603.
Great Britain--History--Tudors, 1485-1603.
Lisbon Expedition, 1589--Early works to 1800.
Princeton subject headings:
Essex, Robert Devereux, Earl of, 1565-1601.
Great Britain--History, Military--1485-1603.
Great Britain--History--Tudors, 1485-1603.
Lisbon Expedition, 1589--Early works to 1800.