in the opinion of Maurizio Marini, an art historian, a distinguished scholar of Caravaggio an expert on Baroque art, this 

painting was a preparatory study for the large work by Bartolomeo Cavarozzi

(Viterbo, 1590 - 1625) "la Visitazione" ( The Visitation) (Maurizio Marini letter included)

Painting from the Nicola Siano collection  “la Visitazione” exhibiting next to Cavarozzi’s painting in the Viterbo Museum

painting (photo included from May 2014 exhibit)

The painting has always always been with the family of Nicola  in the historical center of Rome 16th century  building on via dei Coronari