Stephan Lochner, German painter. Born Meersburg, Germany, about 1400. Died Cologne, Germany, 1451. Lochner was one of the greatest of the early German painters. He is known as the master of Cologne because his paintings are outstanding examples of the gently lyrical and "pretty" style developed by the artists of Cologne. In his masterpiece, the Adoration of the Magi (Cologne Cathedral), Lochner combined the spiritual idealism of previous artists with realistic details of figures and landscape. Such works as Three Saints (National Gallery, London) and Madonna in the Rose Bower, in Cologne, are notable for their glowing colors and the monumental dignity of their figures.