Geralt may choose to help either Rufus or Manfred, or alternatively to remain neutral. If Geralt helps one of the men, the other will become hostile and must be killed. The man Geralt aided will then give him a Diagram as a reward. If Geralt remained neutral, however, no reward is given after the men fight and the quest is completed.
If Geralt chooses to side with the Rufus, he will search Manfred's body and comment on his purse filled with Nilfgaardian Florens, suggesting that his suspicions were correct.