Columbia subject headings:
George IV, King of Great Britain, 1762-1830.
Great Britain--History--1789-1820.
Harvard subject headings:
George IV, King of Great Britain, 1762-1830
Pitt, William, 1759-1806.
Princeton subject headings:
George IV, King of Great Britain, 1762-1830.
Great Britain--History--George III, 1760-1820.
Pitt, William, 1759-1806.