Josef Karl Rädler (1844–1917) was a porcelain painter from Austria, described as “...one of the most exciting self-taught artists to be discovered in recent years.”. Rather than from his work on porcelain, the main recognition he has received as an artist is for roughly 400 watercolour paintings he produced whilst an in-patient at asylums in Austria from 1897 onwards, that were only discovered roughly 50 years after his death.