My younger daughter snagged Nosencrantz and ended up sitting on the couch for a long time, just holding her. Nosencrantz even fell asleep. For a while, she had Fenrir (!!!) on her lap as well, with no fighting happening, and Cheddar on the armrest.
Cheddar then slithered down beside her, and began snuzzling Nozencrantz, who seemed quite alarmed by this.
Clearly, she got over it.
They’re still like this, as I am writing.
This is some major progress. Being out of my room AND cuddling with another cat!