Friedensreich Hundertwasser was born on December 15, 1928 in Vienna, Austria. He was a son of Ernst Stowasser and Elsa (Scheuer) Stowasser. His father died in 1929. In 1943, many of his maternal relatives were deported and killed in Nazi concentration camps. During the war and the Russian occupation, Hundertwasser lived in a Viennese cellar with his mother.