Aside from scanty prehistoric findings, the oldest historical remains date from the 8th century BC, when Sinalunga was perhaps an Etruscan settlement under the control of Chiusi, with some temple at the top of the hill where Sinalunga lies.
The current town grew up around the medieval castle called Castello delle Ripe, attracting people on the hill after the Etruscan land reclamation works in the area were gradually abandoned. Asinalonga is mentioned for the first time in the 8th century. The town was later under the Cacciaconti family, who became subjects of the commune of Siena in 1197.
Main sights
Palazzo Pretorio, built between 1337 and 1346. It was the centre of the civil power in the town, as attested by the podestà and Medici crests on its facade.
