Rogier is kind of a tweak off of Jade Curtis from Tales of The Abyss (aka the Necromancer) I took the idea of a researcher who doesn't really care what anyone thinks of as long as he is able to complete his research. which in Jades case earned him the title Necromancer, though Rogier hasn't done anything to earn such a title( least wise not yet). Other than that I am not sure of any characters that Rogier is related too.
Jade Curtiss
Jade Curtiss