https://en.wikipedia.org/wiki/Oeselians
Oeselians (Latin: Oesel, Osilia, Swedish: Ösel, Danish: Øsel, Finnish: Saarenmaa) is a term historically applied before the Northern Crusades up to the 13th century to people who were living on the island of Saaremaa or Oesel as it was known back then, an island in Estonia in the Baltic Sea.In modern times they are sometimes also referred to as piratical Saarlased (Estonian …