This is my first time posting on History.SE, so I hope my question is appropriate for this site.
I've tried to look up the nationality of Friedensreich Hundertwasser's parents, that is Ernst and Elsa Stowasser. I managed to find out that she was Jewish and he Christian, however I found nothing on the which country they were born in (or perhaps even their further origins).
The reason I am asking is the peculiar name "Stowasser", "sto" meaning "hundred" in Czech.
Thanks!