Siege of Biržai Castle by the Swedes, 1704Biržai, Town views description Siege of Biržai Castle by the Swedes Also a DETAIL image of the fort. Biržai (Birsen (German), Birże (Polish), Birzhai (Биржай, Russian – pre-1917 Биржи), and בירז/Birz or Birzh (Yiddish). First mention in literature: 1455 Year 1704 Author – Sources www.wikiwand.com