Columbia subject headings:
Harvard subject headings:
Generals--Great Britain--Biography
Great Britain--History, Military--1603-1714.
Great Britain--History--Charles I, 1625-1649.
Grenville, Richard, Sir, 1600-1658.
Princeton subject headings:
Great Britain--History, Military--1603-1714.
Great Britain--History--Charles I, 1625-1649.
Grenville, Richard, Sir, 1600-1658.