Columbia subject headings:
Peter I, Emperor of Russia, 1672-1725--Travel--Belgium.
Russia--History--Peter I, 1689-1725.
Russia--Kings and rulers--Biography.
Harvard subject headings:
Princeton subject headings:
Belgium--Civilization--18th century.
Peter I, Emperor of Russia, 1672-1725--Travel--Belgium.
Russia--History--Peter I, 1689-1725.