Castelmuzio is a locality (‘frazione’) in Trequanda in the province of Siena, Tuscany, Italy. It falls within the Orcia DOC. The village dates back to the Etruscans, and is built on a hilltop.

Banks with ATMs: Monte dei Paschi di Siena, Via G Matteotti, 1.

Where to eat: Locanda di Casalmustia (sic). Hotel restaurant. Closed Wednesday. Piazza della Pieve, 3 | Tel+39 0577 665807.