Baron Carl Johan Louis De Geer af Finspång (born 13 July 1938) is a Swedish artist, writer, musician and friherre (baron) of the De Geer noble family. De Geer was born in Montreal, Quebec, Canada. He grew up in a castle in Skåne, in southern Sweden. He broke with his bourgeois background and became a leftist artist, and studied at Konstfack, University College of Art, Crafts and Design in Stockholm. He also exposed his grandmother's Nazi sympathies in a film called Mormor, Hitler och jag ("Grandmother, Hitler and I").
https://en.wikipedia.org/wiki/Carl_Johan_De_Geer