Can the AI break vassalization?

[oblio-]

I'm interested especially during peace time/stability.

Is there a limit for "power relative to liege" for them to declare war or something?

[Wrong section, sorry - the topic can be deleted ]

 

[Eber]

Moved to appropriate forum. Didn't see a new topic by you so I decided not to delete it.

 

[Mann42]

I've personally never seen it, but I also keep most of my pet vassals at a reasonable level smaller than my primary holdings.