Neumeister, from Germany, sells on 6 July 2016 an "Italy, 2nd half 16th c." Pieta, estimated at 2,000 to 3,000 Euro.
It's a powerful painting, but dirty and damaged and perhaps painted somewhat simplistic. It looks later than the 16th c., I would guess 17th c.
Rubylane.com, which sells an "18th c. Baroque" pieta with the same composition, but with differences (e.g. a putto instead of John the Baptist).