Hildegard of Bingen
1098-1179, a German abbess, artist, author, counselor, linguist, naturalist, scientist, philosopher, physician, herbalist, poet, activist, visionary, and composer (quite a polymath for a woman in 12th century Europe).  Her music is still performed today (I have a couple of CDs of her work), and she was the first woman to record a treatise of feminine sexuality, providing scientific accounts of the female orgasm.
Wit: +4 (she even made up an imaginary alphabet and wrote several books in it).
Scholasticism: +7 (wrote books about natural philosophy and herbalism as well as theology)
Artistry: +7 (the music)
Mysticism: +8 (visions from God)
Moxie: (-3) (not canonized as a saint, despite four attempts to promote her).
Combat: (-5) (sickly)

Female, Sane (?) (did have visions from God, after all, but unlike Jeanne, at least she didn’t think that God was telling her to kill people), Honorable

Special ability: If Hildegard is owned by a Valkyrie, then no female Einherjar (other than Hildegard herself) can be removed from that Valkyrie’s list by reason of the Valkyrie losing a Skirmish or having fewer than zero Acorns.
Special ability: Hildegard is not affected by any negative effect that specifically targets female Einherjar.