>>520170512
>From the early Middle Ages, nearly every Italian comune had an open arched loggia in its main square, which served as a "symbol of communal justice and government and as a stage for civic ceremony

So it's Italian? A culture heavily influenced by arabs, especially around Sicily?
But I asked for - Polish origin - architecture?

>>520170459
>Islamic

That type of temple is famously from the origins of christianity - Jerusalem.