Bucelas is a Portuguese wine-region located in the Lisboa wine-region. The region has Portugal's highest wine classification as a Denominação de Origem Controlada (DOC). Located south of the Arruda DOC, the region is noted for its potential for cool fermentation white wine production. Vineyards in the area are planted on predominantly loam soils. The white wines of Bucelas became widely popular during the Elizabethan era in England and again during the Victorian age. In London the wines were sometimes described as Portuguese hock because of their similarities to the German Rieslings from the Rhine. Urban sprawl in the 20th century has drastically reduced viticulture in the area, located north of the Portuguese capital city, Lisbon.