Xar'Cha Palace
Solidarity there may be between Remnant and Xar'Cha, but Delisle has no intention of showing a hint of subordination to the Matron. While most of the partygoers are bowing low, she merely gives a formal inclination of the head. This "foreigner" (though can that term be applied to someone who is in one's own home city?) is perfectly aware of the etiquette. She simply chooses not to follow it.
Ethelay, of course, bows to her elder sister appropriately.