Monteriggioni is the village containing Ezio Auditore's family villa in Assassin's Creed II.
After leaving Florence, Ezio reaches Monteriggioni in Tuscany and takes refuge at Villa Auditore, the family estate. The villa becomes a base of operations and can be renovated with money earned during the game. Improvements to the town increase its income, making Monteriggioni both a narrative home and a management feature.
Ezio receives guidance there from his uncle Mario Auditore, who is also an Assassin. The location remains important throughout the story and is connected to Ezio's family history, training, and later memories. The game also allows players to explore major Italian cities such as Florence, Venice, and Forlì.
Monteriggioni is a real medieval walled settlement in Tuscany, although the game modifies its layout and buildings for gameplay. It should not be confused with Villa Auditore itself: Monteriggioni is the settlement, while Villa Auditore is the estate located within it.