William Schumacher 1870-1930 Willem Pietersz. Buytewech Willem Pieterszoon Buytewech (1591/1592 - September 23, 1624) was a Dutch painter, draughtsman and etcher of the Golden Age. He is often considered the "inventor" of Dutch genre painting. For his preference of irony, his contemporaries named him eGheestige Willeme (Jolly or spiritual William).