Urs Graf was a Swiss Renaissance goldsmith, painter and printmaker, as well as a Swiss mercenary. He only produced two etchings, one of which dates from 1513 – the earliest known etching for which a date has been established. However, his woodcuts are considered of greater significance, particularly as he is attributed with the invention of the white-line woodcut technique, where white lines create the image on a black background. He also produced a few engravings, including copies of works by Martin Schongauer and Albrecht Dürer. He produced innovative drawings intended as finished works of art rather than just studies.