Gregorio Preti (Taverna, 1603 - Rome, 1672) "Hercules and Omphale" oil on canvas cm 95.5 x 134 Study by John T. Spike Provenance: Milan, Finarte, March 27, 1990, lot 182 Bibliography: John T. Spike, Gregorio Preti, Catalogue of Paintings, and Documents, Civic Museum of Taverna, (Florence: Centro Di, 2003), Pages 54, cat. N. 22