Columbia subject headings:
Harvard subject headings:
Altarpieces, Flemish--Germany--Zülpich Region.
Altarpieces, Medieval--Germany--Zülpich Region.
Panel painting, Flemish--Germany--Zülpich Region.
Panel painting, Medieval--Germany--Zülpich Region.
Wood sculpture, Flemish--Germany--Zülpich Region.
Wood sculpture, Medieval--Germany--Zülpich Region.
Princeton subject headings:
Altarpieces--Germany--Zülpich.
Altarpieces--Germany.
Screens (Church decoration)--Germany--Zülpich.
Screens (Church decoration)--Germany.