Throne of Kings is a World Item that is in the possession of Ainz Ooal Gown.
For clearing the Great Tomb of Nazarick in one attempt, a recommendation of level 80+ dungeon for conquering it, the Nine's Own Goal were rewarded with this world item as a trophy. It remains in the guild of Ainz Ooal Gown up until the present day.
The throne is made from a single massive obsidian crystal.
- Rather than keeping it in the Treasury, this World Item is kept in the Throne Chamber, on the tenth floor.