Which unknown/bizarre German (private) banks do you know?

I came across an advertisement for the Fürstlich Castell'sche Bank and found it interesting to see that you are only allowed to open an account there with an investment amount of €250,000 or more. It remains to be seen whether you are being ripped off by high fees, but do you know of any other banks where you thought “wait, what kind of bank is that?” submitted by /u/yatamci [link] [comments]