Trevoynes ( port. Trevões ) - a region (fregezia) in Portugal , part of the district of Viseu . It is an integral part of the municipality of São João da Pesqueira . According to the old administrative division, it was part of the province of Traz-u-Montish and Altu-Douro . Included in the economic and statistical subregion of Dourou , which is part of the Northern region . The population is 639 people for 2001 . It covers an area of 21.55 km².
|Region||Northern Region (Portugal)|
|Municipality||San Juan da Peschqueira|
|History and Geography|
|Population||639 people ( 2001 )|
|Density||29.7 people / km²|
The patron saint of the area is St. Maryna ( port. Santa Marinha ).