Right at the beginning of Chapter 3 of the Law Route.
Who didn't see Leonar's betrayal coming?
double back stab, that is he went after Denam directly after the Duke. I was almost hoping he would join the resistance.
On an unrelated note. Any Soul Calibur 4 fans here? Playing that along with Tactics Ogre has led to me spending over an hour in its character creator.
Will post more if interested.