Otto thinks a bit and speaks:

In order for such two large forces to stumble upon each other unawares, there must be some sort of conspiracy afoot on their side or ours, most likely both. Agents provocateurs in both forces could have caused the confrontation. Perhaps if we followed a trail of florins in this matter. . .though we don't know specifics, treachery of this level requires large bribes. Are any of our men, particularly in the Prinz's forces that day, newly rich? Are any survivors of the former Danish crusader force enriched despite their defeat? The army is still near our borders, perhaps if we dispatched a spy there, we might find some answers.