Yeah High Elves are super arrogant, even for elves! Hmm event idea?
So this post should probably not be here but...
The local peasants have captured a lone elf traveller milord, they claim he was trying to steal the village children! He claims to be a noble among his own kind.
1.) Make his death a public spectacle, and...a memorable one (+1
for x amount of turns. Negative diplomatic shift for one random elven civ)
2.) Release him I want no problems with the elves, they steal children! (Released, perhaps a diplomatic bonus for one of the elven civs)
3.) Bring him to me, let us see if he tells the truth (X% chance you gain some sort of elf unit, perhaps with hero promotion? Perhaps also give him the enraged trait for the chance he "leaves your service")