The regular division of the town into quarters served to orderly arrange within the walls the six rural communities that became its first inhabitants: the people of the Mori, and those of Ganghereto, Pozzo, Terraio, Pernina, and Cave.
When these populations moved inside the castle during the 14th century, they brought with them their popular and religious traditions, rebuilding within the new walls the churches of the villages they had left behind, often preserving the original toponym in the new church’s dedication. This allowed each group to retain its own identity around its church and within its neighborhood. Thus were built the churches of San Niccolò in Ganghereto, San Bartolomeo in Pozzo, Santa Maria in Pernina (which also served the people of the Cave), San Biagio among the Mori, and San Niccolò in Terraio, the latter now lost. Alongside these parish churches of the various communities stood the church dedicated to the Virgin, which belonged to the whole town.
The central square, the meeting point and the point of convergence of the two main axes that physically and visually connected the urban layout with the town walls, was also the beating heart of the new settlement.
It stood in a perfectly central position with respect to the four quadrants into which the town was divided, each becoming home to the six communities that formed the first nucleus of Terranuova’s inhabitants.