Help to determine.....
 

If not artist or at least the age of the writing of this picture. Was bought by my mother in the Vatican in 1972 in an antique shop. 45cm x 39cm Written on canvas oil on canvas rare, hand-woven. Pasted on plywood. Upon closer inspection it is clear that the picture was cut from its frame. Another oddity, in the left corner is a black rectangle, which does not fit into the picture. According to some opinions it could be painted over the signature of the artist. (I heard that in the 16th century in the Vatican fought off the penises of the statues, but to paint the names of the artists...)