According to the website www.sivac.net ethnic German descendants recently visited the Old German cemetery in the village and found many of their ancestors graves. I have no information on whether the cemetery described is religiously specific or not - but looking through Roman Catholic Church records from Sivac I see that a lot of marriages were cross-confessional in that village.

Here is the link to the story of the visit, with photos from the temple and cemetery :

http://www.sivac.net/svabe.htm