Eight years later he became king of Sweden (and, in a personal union, of Norway).
http://en.wikipedia.org/wiki/Charles_XIV_John_of_Sweden
Not quite sure whether 2006 is a Bernadotte anniversary in any way ...
The two pieces have the same design. One is a silver coin (nominal value €0.25), the other one is a €10 gold coin. This is the silver piece:

Mintage is 10,000 max for the silver coin, and 1,000 max for the gold coin. Both are kind of expensive, I think (net price about 20 and 250 euro respectively), but apparently the French mint expects the pieces to sell well in Sweden.
Christian