GENEALOGIE

I am looking for Franz J Thomasberger, born 29 Jan 1866. The records I have available do not provide any location other than Austria, but I suspect he may have been from Bruntal, Mala Moravka. His father is also Franz Thomasberger and his mother is Virginia. Virginia's surname is unknown.

Bruntal church indices seem not to have this surname within.
Malá Morávka (birth index still live - not archived) has births from at least three families of Thomasberger in period around 1866:

Eduard x Maria Müller: https://digi.archives.cz/da/permalink?x ... 080bc8e3e1
Josef x Karolina Mayer: https://digi.archives.cz/da/permalink?x ... a73782e2ac
Johann x Maria Bernat: https://digi.archives.cz/da/permalink?x ... ecf2448cb9

I also found some marriage, 1856 Franz Thomasberger x Adelheid Schilder: https://digi.archives.cz/da/permalink?x ... c90a0bd3ef

Depending on how much you trust the birth date, you may try to circle in an around Malá Morávka.

Note I'd be a bit suspicious about first name of his mother being Virginia, at the time this "sounds" to me quite improbable.