[quote=@Cyclone]
[@Willy Vereb]

Well, Tin just gave Yllendthyr something to talk about with that letter :lol
[/quote]Your demands are downright ridiculous in that letter.
So either Yllendthyr will ignore and pretend like the letter was never properly delivered.
Or tell your Sultan straight that just because his predecessors were nutjobs it doesn't give him the power to make claims and accuses without any basis. Of course told in nice round sentences which may even praise Babur on the surface.
Overall, this would reinforce the Empire's impression that your Sultan is too young to lead. Whether it's good or bad to have such belittling reputation within Yllendthyr is a matter of how you use it.