Katrin Lehmann

First female ascent.

An extremely impressive jump in grade given her previous hardest problem was Fragile Steps (8A+ or 8B).

References

[1] https://www.youtube.com/watch?v=v8Mqrtom6SA

[2] https://www.ukclimbing.com/news/2018/06/kryptos_font_8c_by_katrin_kaddi_lehmann-71616

[3] https://www.planetmountain.com/en/news/climbing/katrin-lehmann-boulders-kryptos-only-second-woman-to-send-8c.html