Note: Do not rely on this information. It is very old.
Bomarsund
Bomarsund, a Russian fortress on the Island of Aland, Gulf of Bothnia. On June 21st, 1854, it was bombarded by the Hecla, Valorous, and Odin, and after being further attacked by the British and French fleets, surrendered on August 16th, 1854, and was destroyed by the Allies. Russia was bound by the treaty of Paris not to restore it.