Trás-os-Montes e Alto Douro Province

Trás-os-Montes e Alto Douro (Portuguese pronunciation: [ˌtɾaz uʒ ˈmõtɨz i ˈaltu ˈðoɾu]) is a historical province of Portugal located in the northeastern corner of the country, known for its scenery, which includes plateaux, river valleys, mountains, and castles.

A second was made in the reign of his son and successor, Afonso III (1248–1279), under the Inquirições or royal commissions in 1258, intending to base the territory of Trás-os-Montes on so-called "new towns" under direct control of the Crown.

Afonso III gave it its charter in 1253, referring to the town, "a hill opposite the Crespos", which already had a core of settlements organized around the Church of St. Facundo.

This isolation kept the province poor and underpopulated for centuries, causing many people to move to the coast or emigrate to other European countries such as France, Luxembourg and Switzerland, and to Brazil.

The most important towns in the region are Vila Real, Bragança, Chaves, Mirandela, Macedo de Cavaleiros, Lamego, Peso da Régua, Mogadouro, Miranda do Douro and Valpaços.