When will a client state move its capital?

[ep1c_fail]

I want to know under what circumstances an AI client state will move its capital.

I'm playing an HRE game (revoked privilegia) and have formed an OPM client state inside the Empire (by coring a province, adding it to the HRE then granting it to a client state). The objective is to keep the client state as an HRE vassal so that it doesn't take up a diplomatic slot, however I'm concerned that if I feed it land outside of the Empire that it'll shift its capital and therefore cease being an HRE vassal.

Anyone know anything about this? I'm aware that certain nations have "fixed" capitals (though this shouldn't be relevant in the case of client states), though I have a feeling that the AI may move its capital to a more developed province.

 

[Bouchart]

If you are a member of the HRE, you can't move your capital to a province that is not HRE territory.

Also I don't think the AI is clever enough to ever move its capital aside from those fixed capital countries and certain decisions and events.

 

[ep1c_fail]

Thanks for the reply.

Is it also the case than an HRE vassal will not add territory to the Empire?

 

[Bouchart]

They will add territory.

 

[ep1c_fail]

Never seen them do it, even when they could. They had great opinion etc. just never added it for no reason.

 

[PrimeYuri]

Ones you revoke, HRE members stop adding land to the HRE which is annoying as hell if you want to release more HRE members on the borders by coring, adding to HRE and release.

 

[True_Heir_of_Rome]

The post above mine is mostly true. If you have anyone join the HRE after you revoke they do not become your vassals, and those members will add provinces to the HRE. I had the Livonian Order and Riga both join post revoke, and they added quite a bit of Sweden's land.

For some reason vassals simply will not add land, which is quite frustrating.