CK II - Byzantine AI dynastic suicide

[VI Imre]

One line summary of your issue
Byzantine AI dynastic suicide

Game Version
3.0.1

What expansions do you have installed?
All of the above

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
The Byzantine AI emperors grant cities to their sons, basically disinheriting them.
It usually happens after religious conquests when the emperor has too many titles on his hand.
I came to the conclusion that this one of the major factors of the Byzantine instability and never ending series of civil wars. I suspect that the cause of this behavior is that the imperial government handles both castle and city titles as equal but once the heir gains the title, he switches government to republic.

Steps to reproduce the issue.
Just watch AI Byzantium with a grown up male heir win a holy war.

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[VI Imre]

The first two times I saw this happen I didn't pay much attention but this time it hurt me especially with an alliance going and all that.

 

[VI Imre]

And this is the current ruling house of Makedon
All living males are mayors with the exception of the emperor. Total dynastic suicide.

 

[CyberSpyder]

Pretty sure it's not an issue with the AI, but something about the special government they get. I've noticed that if you hand out a full county as byzantine/roman emperor, it puts the ruler of that county under republican government rather than feudal. Probably has to do with the byzantine government allowing you to hold cities personally, I'd wager.

 

[jonjowett]

This is also a (lesser) problem for Monastic Feudal: If a monastic feudal ruler's primary title becomes a temple, they are switched to a theocracy. (This could happen by losing all castles, or by losing all counties except for those that have temples as the county capital.) Depending on religion, they may or may not be able to marry. If they are a claimant and are installed by a faction, the whole realm will switch to a theocracy. And, of course, as a player this would mean game over (theocracies aren't playable).

 

[Fitzjacob]

To clarify, the main issue isn't that they are given cities (which shouldn't disinherit them) it's that they won't actively seek marriage once they're mayors?

Still, you'd expect a problem as severe as this to get past testing...

 

[jonjowett]

To clarify, the main issue isn't that they are given cities (which shouldn't disinherit them) it's that they won't actively seek marriage once they're mayors?

Still, you'd expect a problem as severe as this to get past testing...

I don't know if cities would disinherit them or not... but it probably significantly decreases their chances of being elected (eg. due to different government type opinion). If nothing else, you run the risk of Byz flipping to a merchant republic if they inherit (unless there's special coding specifically for Imperial Elective).

 

[Anyasia]

This is also a (lesser) problem for Monastic Feudal: If a monastic feudal ruler's primary title becomes a temple, they are switched to a theocracy. (This could happen by losing all castles, or by losing all counties except for those that have temples as the county capital.) Depending on religion, they may or may not be able to marry. If they are a claimant and are installed by a faction, the whole realm will switch to a theocracy. And, of course, as a player this would mean game over (theocracies aren't playable).

I know we're sort of straying from the main bug report here, but since it may be related, I'll bring up that this also affects Tribal characters inheriting Monastic Feudal realms…

 

[witzen]

Thank you for your report! This bug has been added to our database.

 

[John_DeVries]

I have had the same experience: they start creating massive vassal merchant republics, holding even kingdom titles.