I also agree the head in the throne suggests there may be an oracle at play and thus the seated figure could be a sibyl vel sim. I am also aware that in Etruscan art (and narrative?) gender seems to have greater fluidity.
Liv Mariah Yarrow (pronounced 'leave')
This mirror is discussed at length by de Grummond 2018. I'm convinced by her interpetations of the four standing figures (R ➡️ L) Achilles, Odysseus, and two personifications. But I struggle with reading the seated figure as male?! It is labelled Mezntie. I'd love her to be right. Any thoughts?
