Farscape S02E12 - Look at the Princess Part II: I Do, I Think

Plots swirl around Crichton and his fiancee, Princess Katralla. The empress promises Crichton that if he doesn't marry her daughter, she will hand him over to Scorpius. Meanwhile, Prince Clavor plots to assassinate Crichton so that he may ascend to the throne in his sister's place.