A word of caution, before any parent considers naming their child Valerian, keep in mind that in Australia there is a sleeping pill called Valerian. This might give off the impression that their son is boring!
Valerian is the name of the *female* love interest of the hero Galen in the 1980s movie "Dragonslayer," who for a long time dressed as a male. It's possible that she was born Valeria, but since her father wanted to protect her/prevent her from being sacrificed to the dragon, he changed her name to Valerian so she could pass herself off as a boy.