Founded in 1816 by Portuguese crown heir D. Pedro IV and owned by the Roseira family since the late 19th century, Quinta do Infantado is a pioneering estate in the Douro's Cima Corgo sub-region that farms exclusively top-tier A-grade vineyards across its 46 hectares. Run today by João Roseira and family, the winery broke local traditions in the 1970s by becoming the first to exclusively estate-bottle its own wines, crafting a signature meio-seco (medium-dry) Port style using artisanal foot-treading, natural yeasts, and 30% less brandy fortification than standard industrial brands. They have also forged the way in the production of dry table wines, exploring the possibilities of blending native grapes, and as in this case, isolating one of them. Rabigato is a rare white grape grown almost exclusively in the Douro valley. It is known for preserving its acidity even in hot summers, and produces a bracingly fresh wine suitable for all manner of seafood.