Estonia; island of Saaremaa (German/Swedish: 謘el); city of Kuressaare (German: former Arensburg): Teutonic Order and Episcopal Kuressaare Castle (German Schloss Arensburg; Estonian: Kuressaare linnus): historic Russian distance markers with distances in unit "Werst" in the castle yard. Earliest mentioning of the town was in 1154. In 1227; German order Livonian Brothers of the Sword (Livl鋘discher Schwertbr黡erorden) conquered the settlement. The order moved into Teutonic order; after 1236. After having built a wooden castle; a new stone castle was built starting in 1380. First mentioning of the castle was in 1381. Its name derives from latin "arx aquilae"; meaning Eagle`s Castle (German: Adlerburg). It was built also for the catholic bishop of the bishopric 謘el-Wiek (Estonian: Saare-L滗ne) and was a stronghold of the teutonic order. In 1542; Bishop Johann von M黱chhausen converted to Protestantism; the castle was sold in 1559 to Danish king Frederick II. After 1721 (Great Nortrhern War; 1700 - 1721); the castle went to Russian Empire; but was left by Russians after construction of Bomarsund fortress on island of Aland (Finlland); in 1836. The castle was built in late gothic style and renovated; 1908 to 1912. Today; it serves as a museum and for open air music festivals.