DOC area for white wine and rosé wine in the Italian region of Tuscany. The river Arbia, which gave its name to the region, achieved historical fame in 1260 when the enemy city-states of Siena and Florence fought a battle near Monte Aperti. According to a report by the poet Dante Alighieri (1265-1321), "the waters turned red with blood". The zone covers 62 hectares of vineyards in the municipalities of Asciano, Buonconvento, Castellina in Chianti, Castelnuovo Berardenga, Gaiole in Chianti, Monteriggioni, Monteroni d'Arbia, Murlo, Radda in Chianti and Sovicille in the province of Siena. If the grapes come from classified vineyards, Vigna can be indicated followed by the name of the vineyard. Bianco is produced from Trebbiano Toscano and/or Malvasia Bianca Lunga (30-50%), as well as other authorised varieties. The pure variety wines must contain at least 85% of the respective varieties. These are Chardonnay, Pinot Bianco (Pinot Blanc), Sauvignon (Sauvignon Blanc), Trebbiano and Vermentino. The Rosato must consist of at least 50% Sangiovese. The Vin Santo (also called Riserva) contains at least 50% Trebbiano Toscano and/or Malvasia Bianca Lunga. It is aged in all flavours.