My husband is a Frauenhoffer and I have a family tree for them based on several books from Ostern, St. Hubert, and Grosskomlosch. How can I help you?
Interestingly, on my mother’s maternal side, we have Grilz/Grilc, which I have also seen as Grill/Grill. I know they immigrated from what is now Slovenia but have had difficulty finding much about them. I might need to look into the books to see if I can make any connections
Shannon