Facing Allori’s Coronation of the Virgin, turn left and make your way up the 4 steps in front of you. You’re now entering the Gipsoteca (the plaster cast gallery). Walk through the room, following the pathway on your left. Half way along (about 20 steps from the entrance), you’ll spot a group of 4 sculptures on high pedestals, on your right. The nearest one to you, the one of a mother and her two children, is the Demidoff Monument.