Columbia subject headings:
Hanseatic League--Commerce--History.
Pisz, Johann.
Veckinchusen, Hildebrand.
Harvard subject headings:
Hansa towns--Commerce--History.
Profit--Hansa towns--History.
Princeton subject headings:
Hanseatic League--Commerce--History.
Pyre, Johan, -1455.
Veckinchusen, Hildebrand.