One of our fellow guests was kind enough to discuss those present at Celestyn's residence.
Celestyn, our host. Though we have not been at his residence for long, it is clear there is more to our host than it seems. He is involved with the construction of an air platform, and invited Avalonian merchants to the party. Rather forward-thinking, it seems. He also didn't completely shun Robert on sight, which is not something that can be said about others...
Basia
Although she is from Jhelom, she is apparently called a foreigner. I cannot say I know why. However, it is important to note that the princess and our host are quite close. I suppose this makes us allies, especially as we seem to have been marked as being in Celestyn's camp.
Veronika
While the other women at the party seemed to shun practical clothing for finery, this princess was dressed distinctly different. Her retinue was similarly attired as well. I somehow doubt that dressing practically was merely a matter of fashion with her. She did not take too kindly to Robert, or to any of us, so perhaps she was expecting something. Celestyn seemed to, at least. I suspect such animosity originated between her and our host due to... differences of opinion, as far as Jhelom is concerned.
Przemsyl
Though he might be around the same age as our host, time was not as kind to him as it was to Celestyn. He was described as "odd", by our acquaintance, which could mean any number of things. His loyalties are questionable, I suppose, as it is hard to say whether he favors Veronika or Celestyn. By the chance comments he's made, I would guess that he favors Veronika. However, he seemed to share some secret joke or be in on some secret of Celestyn's, so there is really no way of knowing. He recognized me as well... or at least my appearance.
Kazimierz
The youngest prince of the group. Though I know little else about him, his politeness seemed false. He might also be involved with the theft at Celestyn's residence
Among the guests, I also discovered Radha. She looked nothing like I remembered her (though, to be fair, I had not seen her in the best light), and was now calling herself "Julia"...