An artist's portrait from Stalag VII A

I lived in Essone 15 years ago and bought this drawing in a depot vente. I found your website so interesting and it has made this drawing come to life. Does anyone know anything about this POW of Stalag VII A? It is a portrait of the sculptor:

On the back it says:

The place where René Marie lived in Paris is being preserved as artist studios. In 1910 Modigliani and Diego Rivera seemed to have lived here.

Julia Manning

Source:

• E-mails by Julia Manning, Somerset, UK, to Moosburg Online, April 2008