Yes, bad formatting seems to have swallowed several sentences from me. After "needed to travel", I had that Hertefeld said Katte was waiting for a carriage he needed to travel, and that while these are different things, they are similar enough to point to a possible shared well of information. Also that I didn't necessarily see it contradicting Katte telling the Danish envoy (who told Fritz, who told Mitchell, unless, of course, Fritz for whatever reason was lying to Mitchell) that he was remaining for "some girl" - Katte's comrades from the regiment would know better than the Danish envoy whether or not Katte was currently having a love affair, so they need another story. I'm assuming here that both stories aren't really true but cover stories for "I first need to destroy all the stuff incriminating the Princess and the Queen", which of course might not be true.

Both of us deducing the Pannewitz connection: Salon hivemind strikes again! *highfives*