Syanno[a] or Senno (Belarusian: Сянно, romanized: Sianno;[b] Russian: Сенно; Polish: Sienno; Lithuanian: Siano) is a town in Vitebsk Region, Belarus. It is located 58 km (36 mi) southwest of Vitebsk on the southern shore of Senno Lake. In 2018, its population was 7,092. As of 2023, it has a population of 7,158 Syanno The village is first mentioned in a document of 1442. Fairs were held ther...