Gotcha. So Fritz' siblings get reincarnated as well?

I mean, there's nothing stopping us from saying so! So far I've only personally considered Wilhelmine, but the only real constraint is that the vast majority of them have to be reincarnated as not-siblings, otherwise it defeats the therapeutic purpose.

loyal subject that he is, pronounces them deep and moving

Of course he does. On the other hand, Lucchesini seems to have meant it, so maybe Lehndorff did too!