Peso da Régua is the centre of the demarcated Douro region, known as the international capital of wine and vineyards. Its name results from the concatenation of the names of the two localities that gave rise to the modern town. Peso was the original settlement, developing on the hillside and corresponding to the upper part of the current city. The Régua, corresponding to the lower part of the current city and extending along the banks of the Douro, grew with the arrival of the train. Its important railway station (and the commercial warehouse of Port Wine) gave notoriety to the name of Régua.In Régua were born names of local and national importance, among them, the doctor and writer João de Araújo Correia (Canelas do Douro) and Antónia Adelaide Ferreira (Godim), popularly known as "A Ferreirinha", a portuguese businesswoman of the  century, known for dedicating herself to the cultivation of Port Wine and for the remarkable innovations that she introduced. She fought against the lack of support from successive governments, more interested in building roads and buying Spanish wines; she fought against the vine disease, phylloxera, and travelled to England to obtain information on the most modern and effective means of combating this plague, as well as more sophisticated wine production processes.