Uh, well, since it was a translational error, I'm guessing the Compendium's stance is: It was a translational error.
From what I remember of Hyena20's old thread in GameFAQs (that I believe someone saved and is now part of a FAQ there), the error was due to the fact that a (or many) Zealian(s) makes thinly veiled ennuendo about Janus maybe not being a pure-blooded Prince (ie Zeal f***ed around on the King or at least was rumored to have possibly).