Columbia subject headings:
Harvard subject headings:
Diplomats--Poland--Elbląg--Biography.
Ketelaar, Jean Josua, 1659-1718
Klein, Jacob, 1721-1790.
Missionaries--Poland--Elbląg--Biography.
Missionaries--South Asia--History--18th century.
Netherlands--Foreign relations--1648-1795
Princeton subject headings:
Elbląg (Poland)--History--18th century--Biography.
Ketelaar, Jean Josua, 1659-1718.
Missionaries--Germany.
Missions--India, South--History--18th century.
Nederlandsche Oost-Indische Compagnie--Biography.