so sorry!

I only saw a circular wall around the top of the hill so i identified as "fortress built as refuge for humble peasants against badass brigands".
who can say... maybe there was really an ancient "castellaro" right there, dating back the primitive settlement? ["castellaro" is a term i don't know how translate, it refers to ancient fortified sites, of circular shape, tipical of the iron age Ligury]

And sure i know how it is easy to forget the whole map while struggling with that tiny piece-of-something, 'cos i'm making the same from time to time!