(May 26, 1846 - April 2, 1925) was a German painter and professor of art especially noted for his genre paintings of monks. Gretzner was born in 1846, the youngest of children, into a farming family in Groß-Karlowitz near Neisse, Upper Silesia in what is now Poland. The local pastor often visited his parents' home, as his father was a prominent member of the church. He recognized early on Eduard's talent and inclination for painting. Even as a child he drew on everything that fell into his hands. The administrator of a ducal country house in the neighborhood got him paper, and eventually the pastor gained him entrance to the Gymnasium (a university preparatory school) of Neisse, and brought him in 1864 with the help of an architect Hirschberg for art education at the private school of Herman Dyck in Munich.