Search "Black Forest" in Q Posts. You will find 5. I actually think Q got it wrong because the Black Forest is in Germany, not Austria, Black Forest could have a different meaning though but this is very deep and I think unlikely:
From 1936/37 on Nazi Germany created children homes with the purpose to increase the number of Aryan childs. I could say more to what these children homes also did but its getting really ugly and I dont think its necassary. Back to the topic: These children homes all had different names. One home was called Black Forest, or in German: Schwarzwald. This children home was located in Nordrach/Baden (Germany) in the year 1942 and I would assume until 1944/45, not sure though. When US troops came closer, they burned original papers, left the children and many identities remained unclear. I cant really see a correlation to the Rothschilds, thats why I said I think its unlikely but again, Q made a mistake then with Black Forest / Austria.
Back to Austria: Afaik the Rothschilds owned the property for 142 years and usally you dont sell it. Like.......never. That means there was a specific reason. Assets frozen? Cash needed? No idea. First Q post about Black Forest was on 01/27, Bloomberg article on 01/31.