Hear hear,

It's this one:
http://en.wikipedia.org/wiki/Italian_coin_florin

Before adopting the Euro in 2002, the Dutch (we) denominated amounts of guilders as 'hfl 100,-' in which the fl still stood for florin. (I think the 'h' stood for Holland, not sure). So the influence of this old Italian coin lasted that long. There are still a number of national currencies (like the Hungarian Forint) named after this coin. The name Florin was even a candidate for the common European currency, but lost out to the much more drab 'Euro'. So all in all a pretty accurate choice.