The painting shows Christ being taken to Calvary. If you look closely at the image you can see a conflict of eras which is quite quaint. I particularly like the portion of the picture (displayed here) that shows Jerusalem complete with a windmill which seems to dominate that portion of the picture.
If successfully purchased the painting will remain on view in Nostell Priory. It is a place I have never been, I need to rectify that
For the full report and more pictures of the painting go here.