Italian Medievalism in the 19th century based on the political motivation of the independence of the nation, demanded the liberalization of architectural style. Its theoretical base came from the foreign research of the medieval architecture. P.Servatico and C.Boito interpreted "Stile Lombardo" pointed out by T.Hope as the superiority of the Italian medieval architecture over Europe. But what was in question after Unity of Italy is the legitimacy of Medievalism from the North Italy in all Italian architectural culture. Therefore "Stile Lombardo" had to be legitimatized by the rationality of the structure and the diffusion in every place of Italy.
