Birth Name: Horst Christian Simco
Place of Birth: Houston, Texas, U.S.
Date of Birth: January 29, 1982
Ethnicity: Ashkenazi Jewish, possibly English
Riff Raff is a rapper who was born to Ronald and Anita Simco. His mother Anita is descended from German and Lithuanian Jews, some of which were victims of the holocaust. He has said that he is not religious. His first name Horst is of German origin.
Riff Raff’s maternal grandparents are Bernard Isaacs and Amy Ruth Jacobson.
Source: http://www.rollingstone.com