Following report is about the Urbanization period of Europe which they did a graze from Dark Age in 12th and 13th century. In 12th Century, with the period which basis on Christianism and Byzantium traditions, Rome has the partiarchic revolution had in there. With those, Franks, who were just a basic tribal country (not sure if we can mention about the country concept) not that far, a couple years ago, conserved themselves from these revolutions with religious reforms. Exact those times, there were a society rising through from all, who were declining the church. These people were mostly merchants so they were interested in trade commercial structures like market buildings, stores, shops and in addition to that, these structures were forming the shapes of the public areas of course.
Gothic architecture which is mentioned in text, were in a significant effect in old towns. A lot of parts were just a copy from Romans and Germans. What we can understand from that information is, Romans were influenced Europe, old towns so much with its legacy. These Roman influenced cities were a safe guardian of the plebians (lower class in hierarchy). With that, protection of people became an crucial concern in design so they had their cities in circular forms to become more suitable from all, with that, there is a opportunity of natural growing of city had been created at all.