Monteriggioni is a walled town in the Italian province of Tuscany. The town is referenced in Dante Alighieri's Divine Comedy, but is most well known for its appearance in both Assassin's Creed II and Assassin's Creed: Brotherhood. The town dates back to medieval ages, and is walled for defense. Conflicts between Monteriggioni and Florence have been dated back as far as 1203, when the town of Monteriggioni became the first defensive frontier against Florence.
Very little has been done to modify Monteriggioni beyond its original design from the medieval dates, and the area attracts large numbers of historians and tourists. The town holds several different 'piazzas', the most significant of which being the Piazza Roma. The Piazza Roma is dominated by a church and housing.
During Assassin's Creed: Brotherhood, the city of Monteriggioni is able to be explored in 2012 by Desmond. This version of Monteriggioni is fictional, as the town holds historic significance, and it is not used for housing.