Crucifixion Triptych of the canon Peter von Wartenberg

Wilhelm Kalteysen's Crucifixion Triptych of Canon Peter von Wartenberg, painted around 1468 and now in the National Museum in Warsaw, is a significant work of fifteenth-century Silesian painting. Kalteysen worked in Wrocław (Breslau), then part of the Bohemian Crown, and his paintings reflect the intersection of Bohemian, German, and Netherlandish artistic influences that characterized Silesian art in this period.

Kalteysen's triptych combines the emotional expressiveness of Central European Passion imagery with increasingly naturalistic rendering of figures and space, showing awareness of both Bohemian and Netherlandish painting traditions.