Liebfrauenkapelle is a chapel in Rapperswil, Canton of St. Gallen, Switzerland, which dates back to the ossuary that was built by the House of Rapperswil around 1253 AD.
Wikipedia https://en.wikipedia.org/wiki/Liebfrauenkapelle_(Rapperswil)
Address 57 Herrenberg, Rapperswil SG 8640, Switzerland
Coordinates 47°13'39.398" N 8°48'58.173" E