Check out if your family still have hidden accounts in the Swiss banks. You just need to find your grandma's name on this list and then the millions are yours, kind of... Yes the Swiss banks are open up there books and have some €40 million to distribute.
The claim deadline for potential legitimate claimants is one year, or five years if the assets in question have been dormant since at least 1954.
Money from some dormant accounts in Switzerland that are available to you! But I doubt the Swiss would like anybody to find their "old families money". Since the Swiss government will collect the unclaimed funds within a year.
Information on account searches
Dormant accounts at Swiss banks here
Approximately one billion US dollars, IN CASH