Lady Byron?
At such a banquet, in such a location, and considering the identities and ranks of the attendees, Arthur couldn't imagine any Miss Byron other than the one from the Byron Family who would qualify to stand here.
Arthur thought for a moment, intending to compliment Ada's father's work, but before he could even speak, he saw Ada hold up her index finger to her lips.
Perhaps having had too many similar encounters, she pre-emptively said, "Shh! Please don't recite my father's work. My mother dislikes his poetry, hates the man himself even more, and wouldn't let me associate with other poets for that reason. If you don't want to be sent away by her, it's best to talk about something else."
Arthur was taken aback for a moment, then, recognizing the situation, he asked, "Why? Is it because the honorific Lord Byron... no, that man broke your mother's heart?"