Also a member of the First Brood who has been wallowing in self-pity for the past five thousand years or so, albeit while being surrounded by the reminders of why she's up there in the first place.
I remember some speculation that Tiamat might not even care if some unscrupulous sorts decided to do a Thordan and take her eyes. Personally I don't actually know if she's that far gone, but she seems not to be concerned about her own well-being to the point where I can't say it's impossible.