Battle of Grengam

The Battle of Grengam (Russian: Гренгамское морское сражение, Swedish: Slaget vid Ledsund or Slaget vid Föglöfjärden, Finnish: Flisön taistelu) of 1720 was the last major naval battle of the Great Northern War. It took place in Åland, in the Ledsund strait between the island communities of Föglö and Lemland.