Background
Knorr was born at Königsberg in East Prussia.
Knorr was born at Königsberg in East Prussia.
In 1852, when he was almost eighteen, he entered the Königsberg Academy of Art, where he chiefly studied landscape. Later, his master was the painter August Behrendsen. In 1875 Knorr was appointed as a professor of art at the Karlsruhe Institute of Technology.
He died at Karlsruhe in 1904.