Portrait of Albrecht Altdorfer by Philip Kilian (German, 1628-1693); Engraving, 10.3 x 10.1 cm; Achenbach Foundation for Graphic Arts / Fine Arts Museum of San Francisco, CA, USA

Albrecht Altdorfer (c.1480 near Regensburg √ 12 February 1538 in Regensburg) was a German painter, printmaker and architect of the Renaissance era, the leader of the Danube School in southern Germany, and a near-contemporary of Albrecht Dürer. He is best known as a significant pioneer of landscape in art. link