Trás-os-Montes e Alto Douro 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.

Vila Real is the capital and largest city of the Vila Real District, in the North region, Portugal. It is also the seat of the Douro intermunicipal community and of the Trás-os-Montes e Alto Douro historical province. The Vila Real municipality covers an area of 378.80 square kilometres (146.26 sq mi) and is home to an estimated population of 49,574 (2021), of which about 30,000 live in the urban area (2021).