To his defense, German is closer to English compared to French.
I'm replaying the GK-games right now and they really are the best games ever made IMHO.
I didn't remember that GK3 took inspiration from "Holy Blood, Holy Grail". So everyone who is bashing The Da Vinci Code should play GK3.
EDIT: About the Ritter family, I didn't remember that the reason why they became Schattenjägers is explained in the end of GK3 either (just finished it). Don't know why I haven't replayed the trilogy before now (since they really are masterpieces).