claim: Fred Seibert has a career as a blues and rock record producer.
evidence: Eduard van der Null -LRB- 9 January 1812 -LRB- baptized -RRB- -- 4 April 1868 -RRB- was an Austrian architect , who was one of the great masters in the historicist style of Vienna 's Ringstrasse .. historicist. Historicism ( art ). Ringstrasse. Ringstrasse