The name Robert Heinrich does not correspond to a widely recognized artist in the annals of art history. Without more specific information, it is challenging to provide a detailed biography. There may be several individuals with that name, none of whom have achieved prominence in the art world to the extent that they are commonly known or studied. It is also possible that you might be referring to a contemporary or lesser-known artist, or possibly an individual associated with another field entirely, such as literature or science. If you can provide additional information or context, such as a specific art movement, medium, or country associated with the artist, I may be able to offer a more accurate and detailed response.