Spoilers for everything ahead[]
Spoilers for all three campaign time periods exist ahead of this, so you have been warned, etc.
Visual inspirations for her[]
The depictions of Lucretia from The Adventure Zone resonate with me pretty well when I think about Our Lady of Being a Lich, particularly thanks to the fact that you get a lot of young/old side by side pictures of her.
Image sources:
http://wheresmytabletpen.tumblr.com/post/159072382874/hoo-boy-i-really-love-her-commission-me
http://trainwreckgenerator.tumblr.com/post/160206377799/i-saw-seven-birds
https://jeinu.tumblr.com/post/163766670111/every-time-i-see-your-taz-art-i-die-its-so-good
Personal Info[]
If you really DESPERATELY need a name, she doesn't mind being called OLBL (prounced Ol-bel, sounds like Opal, so Opal is another option).