According to Kazimieras Būga, the name of Seda is of hydronymic origin and
was derived from the name of nearby Lake Seda also known as Sedula. Seda was
first mentioned in written sources in the 13th century. From the 15th century
Seda was famous as a busy trade settlement with Livonia. The town of Seda was
established in 1500 and in 1508 the parish was founded. In the middle of 17th
century, Seda suffered great losses during the Second Northern War, but
recovered in the 18th century. In 1770, ciwun Vaclovas Bartoškevičius and his
wife Elžbieta Juškaitėthe sponsored construction of the Catholic Church of the
