(Frankenstein 1868 – 1940 München)
Erler studied in Breslau and Paris between 1886 and 1894. He soon made a name for himself as a mural and decorative painter, his monumental paintings often depicting themes from Germanic mythology. During World War I, he produced war paintings for propaganda purposes. His portrait work was devoted to artists and musicians, and from 1933 onwards also to leading Nazi politicians.