Rosettes castle and Rocca Calascio

[Linda]

I could see the basic idea of this castle being involved, as I read it was strictly for military use. The vms version loses two of its corners and replaces the far ones with standalone square towers, but with artistic licence, I could see drawing it that way, delete the parts that obscured the view, and draw what you thought you saw in behind. There are pics of the back side, it doesn't look the same without the merlons.

Or, maybe it is meant to be border patrol, so only one side is unfriendly, the other side gains a door?