Agreeing that this is prob. Hecate. She is a chthonic deity, and has been associated with the owl. The eclipse symbol behind her black throne is a pretty clear moon symbol, and Hecate is associated with the moon - and her first identity was as a moon goddess.
solidsender:Daenerys Stormborn of the House Targaryen, the First of Her Name, the Unburnt, Queen of Meereen, Queen of the Andals and the Rhoynar and the First Men, Khaleesi of the Great Grass Sea, Breaker of Chains, and Mother of Dragons. And who can forget Mysa?
"I rescind any right that I and any future relation have for this throne." Talya stared ahead; her eyes were dull no longer, brightening and hardening with the strength of one with confidence in their actions. "I want no part of it. Do what you will."
Steal Her Style: Missandei in Game of Thrones Season 5
Feyre stabbing Tamlin, the tool, stone heart in ACOTAR. When she wanted to plunge it into her own. Before Amarantha broke her neck and My baby Rhys screamed as he loved her. ACOMAF coloring book ACOTAR ACOWAR Sarah J. Maas Charlie Bowater