Chrissi^
I am note sure what info the op is missing here. Maybe I just don't see the full comment mobile? Anyway: this is a private graveyard as already marked. I will add some photos for clarification.

via StreetComplete 31.3

Attached photo(s):
https://westnordost.de/p/53319.jpg
https://westnordost.de/p/53320.jpg
https://westnordost.de/p/53321.jpg