Columbia subject headings:
Dürer, Albrecht, 1471-1528.
Pirckheimer, Willibald, 1470-1530.
Harvard subject headings:
Dürer, Albrecht, 1471-1528
Pirckheimer, Willibald, 1470-1530.
Princeton subject headings:
Dürer, Albrecht, 1471-1528.
Pirckheimer, Willibald, 1470-1530.