Well, it's most famous for being a character in a television series from 1995. According to Wikipedia, this character was to some extent based on an actor called Weiron Holmberg (born in 1935). I have no idea why he was named Weiron, though ... Not counting the ones in the
BAs, there are 17 Veiron/Weiron/Veyron in the population, eight of them born after the series premiered. The first one I can find was born in 1926. Possibly his parents made it up and inspired a few others, which in turn inspired the TV series and then the rest of the nation?
Anyhow it is quite odd that such a rare name was used for two babies born in two different parts of the country just six days apart (I checked). :S