I don't know, but I would imagine the family that built this were descendants of Vettor Pisani, who helped save Venice during the Chiogga War.

Edit: I've seen two different spellings for Vettor Pisani.

If games teached me anything is always keep your left arm to the wall and keep going forward.

I was at the summer palace in Vienna last year, and managed to solve all the labyrithns there with the above simple bruteforce algorithm