Eldena Abbey settled
1101 CE.
Shown on the map at 54.089°, 13.452°.
Eldena Abbey (German: Kloster Eldena), originally Hilda Abbey (German: Kloster Hilda) is a former Cistercian monastery near the present town of Greifswald in Mecklenburg-Vorpommern, Germany. Only ruins survive, which are well known as a frequent subject of Caspar David Friedrich's paintings, including the famous Abtei im Eichwald ("Abbey in the Oak Forest").
Text from the Wikipedia article Eldena Abbey, licensed CC BY-SA 4.0.