Yes. The Knight can encounter Cloth at the Ancient Basin, near the end of the Tram tunnel. If you save her by clearing out the enemies nearby, she will be inspired by your heroic feats. Then, with renewed courage and vigor, she can be seen standing outside the Queen’s Gardens, ready to challenge the Mantis Traitors. However, this leads to her inevitable death, even if it is during the epic battle she wanted. Therefore, to save Cloth during the Traitor Lord fight, she mustn’t be there for the encounter at all. Simply avoid her location in the Ancient Basin before killing the Traitor Lord. Afterward, she will appear at Dirtmouth sleeping outside Sly’s shop. Since she couldn’t find the fight to the death she wanted in Hallownest’s ruins, she would look for one elsewhere or die trying.