Just spoke with my mother on the phone. So, it is not known whether the bank is still recorded in the land register. Back then, there were two forced auctions scheduled, which were each canceled again at short notice due to the influence of my grandpa. (He used to be a big shot in the police... he must have "worked" on it accordingly, however that was...) Since then, nothing has been heard. So, as I said, first look at the old documents and request the land register excerpt. But we will only start all that after the funeral. Thanks already for the food for thought. Oh yes, as collateral, ONLY the house was pledged back then. It is contractually stipulated that only the house applies, otherwise nothing can be collected from my grandma or my mother personally as private debtors. Regards Specki ps: Sorry if I use some terms incorrectly here, I am a total layman in this area.