`  == Georg Büchner Prize ==  Hi, thanks for the addition. The problem with this one is the prize amount since the list has a cut off of $100,000. There are a few under that amount since exchange rates could conceivably bring them up into the list. But for the Büchner Prize would require the Euro to trade at 2:1 to the dollar which is almost inconceivable, the highest its ever been was around 1.5 and currently under 1.25. The alternative is to reduce barrier for entry into the list, but even at 100,000 I think there are too many to be considered ``richest``. There are tons more in the 50-100 range which would make the list (even more) arbitrary.   `