Amtssee (lake) nearby the <a href="//commons.wikimedia.org/wiki/Kloster_Chorin" title="Kloster Chorin">Cistercian Monastery Chorin</a>, which was founded in 13th century by the together governing <a href="https://en.wikipedia.org/wiki/House_of_Ascania" class="extiw" title="en:House of Ascania">Ascanian Margraves of Brandenburg</a> John I (1213–1266) and Otto III (ca. 1215–1267). Chorin is a municipality in the <a href="https://en.wikipedia.org/wiki/Barnim" class="extiw" title="en:Barnim">District Barnim</a>, state <a href="//commons.wikimedia.org/wiki/Brandenburg" title="Brandenburg">Brandenburg</a>, Germany.
<a href="//commons.wikimedia.org/wiki/User:Lienhard_Schulz" title="User:Lienhard Schulz">Lienhard Schulz</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>