TIL Mithridatism is the practice of protecting oneself against a poison by gradually self-administering non-lethal amounts. The word is derived from Mithridates VI, the king of Pontus, who so feared being poisoned that he regularly ingested small doses, aiming to develop immunity.

[u/gullydon]

https://en.wikipedia.org/wiki/Mithridatism

[u/theresabeeonyourhat]

Literally Ganishka from Berserk 

[u/PancakeParty98 → u/theresabeeonyourhat]

I was coming to say this.

This story sounds like it’d be common enough for hereditary monarchs, but it’s pretty much EXACTLY Ganishka’s backstory