Crusader Kings II is a strategy game for PC based in the middle ages developed by Paradox Development Studio and published by Paradox Interactive as a sequel to Crusader Kings.

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CK2 - Can a king be the vassal of another king?

I'm the King of England and have also slowly usurped the title of King of Wales. I've invited a guy to my court who has a claim on the Kingdom of Scotland. I can now press his claim and go to war with ...
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480 views

What's the difference between total, current and relative strength?

When you hover over a person in their dynastic tree, you will be able to get an idea of how many troops they can summon. There are several numbers, but I can't figure out which I should look at. ...
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495 views

Can my save games be salvaged?

I've been away from Crusader Kings for a while, to focus on more important things in life (mainly Europa Universalis 4). I run my game through Steam, so it autoupdates even if I don't play it for a ...
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2answers
2k views

Can I ensure one son becomes vassal of another when I die?

I'm currently using Gavelkind succession, and it looks like I might not have a chance to change it before I die. I currently have 2 sons and hold 2 duchies, so when I die they'll each get one - ...
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1answer
3k views

Am I allowed to usurp a title from my liege?

I am playing as the Duke of Bohemia. My liege is the Kaiser. My vassals have 2 of the 3 counties of the (de jure) Duchy of Moravia. I was planning to create the title Duke of Moravia, but the Kaiser ...
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1answer
4k views

What “powerful boons” can the Pope grant?

One of the loading screen tips says: The Pope can grant powerful boons to good Catholics. What exactly does that mean? What can the Pope do to help me, if I'm a good Catholic?
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3answers
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I have medium crown authority, why are my vassals still fighting each other?

As I understood, crown authority from medium up should prevent vassals from figthing each other. I am playing as King of Scotland and Ireland and have medium crown authority, still my vassals are ...
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695 views

What if a king is also a duke in a different kingdom?

I play as the King of Ireland (and Castille), and I've betrothed my male heir to the heir of a duchy and some stray counties in England. As I understand it, my daughter-in-law will rule as a duchess ...
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1answer
2k views

When do republics start making trade zones?

I created a vassal merchant republic in my kingdom. It is now several decades later and the merchant republic seems to own zero trade zones. The republic is in the Baltic and there are no competing ...
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2answers
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How can I quickly reduce my realm size?

Related to how to find out how big an opponent is, I just found out that I'm the biggest kid on the block: my realm is bigger than even the Holy Roman Empire, so I can't invade anybody. But my realm ...
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151 views

Fulfilling vassals' ambitions gives no opinion bonus. Is this a bug?

Say you have a vassal or couriter who wants to get married, and you help him by arranging marriage but his opinion of you doesn't change. Is this a bug or not? I'm on version 2.1.6
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I don't understand gavelkind

I'm confused on how exactly is gavelkind succession supposed to work. All I've read (e.g. Crusader Kings 2 Succession Laws – Explained says that the highest titles I have will be split between my ...
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1answer
154 views

Mixing succession laws- is there a downside to this?

After much diplomacy, war and diplomatic wars I've reunited France and Aquitaine. All my land is in those kingdoms. France has Primogeniture sucession. Aquitaine has Gavelkind. I personally control ...
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0answers
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Can legitimised bastards be heirs?

I'm the petty king of Munster. I have a daughter by my ex-wife and my new wife isn't very fertile. I gave a courtier a good tumble, she gave me a son, and I legitimised him. I was expecting the ...
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2answers
2k views

Expanding within HRE

I'm playing my first game and I think I'm doing quite good. I've started as a bohemian duke and I've managed to create Kingdom of Bohemia, expanded a little while HRE had low crown authority, got ...
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759 views

How should I punish my revolting vassals?

In my current game so far I've put down a few civil wars (playing as England currently). At the conclusion of the war, the vassals involved are all imprisoned, and I'm left to figure out what to do ...
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702 views

What determines when the ambition penalty triggers?

Following a discussion between @Affine and myself on one of my answers, I've found out the exact effects of the ambition personal trait may not be as simple as initially thought. My claim: "Ambitious ...
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1answer
3k views

Is it possible to assign commanders during a siege or battle?

When an army is idle, you can assign commanders to the center and the flanks. However, if the army is already part of a siege or in a battle, it doesn't seem that you can. Or can you? It seems a bit ...
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610 views

Under gavelkind or primogeniture inheritance, is a dynasty member who is not a descendant allowed to inherit?

Under gavelkind or primogeniture inheritance, if a ruler has no [eligible] children, is a dynasty member (sibling, uncle, cousin, etc.) who is not a descendant allowed to inherit? I thought that ...
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1answer
103 views

Are diseases more common in certain regions?

I was playing my Abbasid Caliphate game recently and saw a smallpox outbreak pop up in the south. Normally this wouldn't be noteworthy but I stopped and realized that I hadn't seen one in many ...
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2answers
3k views

How to keep HRE at bay as a pagan (Old Gods)?

In Crusader kings I am playing as Pomerania and as a matter of making my game more interesting I decided at the start to not convert to Catholicism and stay as a Slavic pagan until the end of the ...
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1answer
2k views

What can I spend Prestige on?

I have thousands of Prestige and no idea what to do with it. I have read that you can spend it on actions, but I can't figure out which actions those are or where I find them.
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1answer
5k views

Can't proceed in tutorial: How do I switch to independent realms map mode?

I've started the tutorial, but I haven't proceeded very far.... How do I switch to independent realms map mode?
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1answer
406 views

Vassal inheritance warning - Who must die?

I have a duke who has a married a foreign duke which has given me an inheritance warning. This being Crusader Kings, my gut instinct is to have someone killed but I'm not sure who or in what order ...
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1answer
184 views

+9 -8 = +1, why is it still a “no”?

I'm trying to arrange a betrothal, and under the opinions I can count 9 '+' and 8 '-', but the result is still "no". I've no clue what's going on, then.
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310 views

Is there any disadvantage to joining an ally's war but then not lifting a finger to help?

If I have a powerful but far-off ally who asks me to join their war at a moment when I'm too busy with my own wars, is there any disadvantage to accepting their call for help but then never actually ...
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2answers
149 views

Conflicting Wargoals

The HRE asked me to join in their war. I refused and then looked at who they were attacking and I noticed there were trying to claim an independent county somewhere in the Alps (forget the name). So I ...
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1answer
320 views

How do I kill adventurers before they attack?

I've been playing through my very first full game as the Byzantine Empire. I've been going along fine, except every so often, I will get a message about a raiding adventurer party wanting land. How ...
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1answer
411 views

How do I goad a foreign power into attacking?

So I noticed once upon a time, while defending Jerusalem from a Jihad that I was getting a +75 vassal opinion bonus from defending in a holy war. This came in handy when my character died and was ...
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1answer
4k views

How are claims created and inherited?

Each claim to a title has two properties: whether it's weak or strong whether it's inheritable or not Each of the 4 possible combinations of the two properties is possible. Since I didn't find ...
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1answer
1k views

Why can't I start a great holy war

I am the Fylkir (reformed norse version of the pope) and would very much like to know why I cannot start another holy war. I am playing as Empire of Britannia. I have all the holy sites. The year is ...
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4answers
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Does the bishop stats really matter?

If you have free investiture, you get to elect your own bishops, which is pretty neat. But do their stats really matter? Usually, I simply go through the list and pick people who have a high opinion ...
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439 views

Can I raise tax on myself?

I currently have a small realm in Ireland consisting of one duchy in which I have personal control over all the counties (i.e. my entire realm is my demesne). As such, I am the baron of every castle ...
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2answers
4k views

How do I deal with Gavelkind inheritance?

I have a minor problem - I started playing as the guy from Aquitane(the southern super-Duke) and now as he is in the fifth decade of his life, I am faced with the threat of losing all of my duchies ...
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2answers
10k views

Can you restore Roman Empire as a pagan?

I am playing the Old Gods DLC, started in the north as a Pomeranian duke, formed the Wendish Empire and have now reconquered much of the Byzantine Empire, whose title I have usurped. I stayed as a ...
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1answer
91 views

Is there anything useful, besides executing and ransoming, that I can do with an imprisoned liege?

I've been playing as a Duke in the HRE, and I've managed to imprison my liege (the emperor). However, now that he's here, I really don't know what to do with him. My goal right now is to lower crown ...
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2answers
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How do I push the 'Holy Roman Empire' out of Britain?

I'm currently playing as the Kingdom of Ireland - though I now control Alba (Scotland), Wales and more or less half of England...my final goal is to form the 'Empire of Britannia'; the issue I have is ...
4
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1answer
59 views

Why am I losing this title?

I am playing CK2 with my friends in the Byzantine Empire. He is the emperor while I picked a duke in the kingdom. When he got enough money, he then created the Kingdom of Greece and gave it to me. ...
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1answer
345 views

My personal levy size suddenly decreased by more than 50%… what could have happened?

I don't know what happened, but in three months, without apparently anything of note happening, my personal levy size more or less halved. I would stress out I'm talking about personal levy, not ...
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2answers
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Why are my vassal bishops paying taxes to the HRE Kaiser?

Several of my bishops are paying taxes to the Kaiser. Not only are they not paying the pope (although the pope is vassal to the Kaiser), their opinion of the Kaiser is less than that of me. One bishop ...
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2answers
2k views

Being Invaded in Crusader Kings 2

So I'm building up my empire nicely. I'm King of Wales and Scotland, soon to be King of Ireland, and then slowly move into England – and become Emporer of Britannia. I've done it before (though ...
4
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1answer
182 views

Why are my vassal bishops paying taxes to the Kaiser and not to me?

My vassal bishops are paying taxes to the Kaiser of the HRE and not to me, even though they like me significantly more. I can't understand why this is.
4
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1answer
475 views

If I move my capital in CK2 will I take my technology with me?

I'm currently playing as the king of Eire in Charlemagne and I am around 150 years in. I've started to expand into England and will soon hold all the southern counties. With the bonus of the ...
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1answer
1k views

Can you Stop Viking Raiders with Conversion?

Viking raiders are pests! It's easy enough to beat them or scare them off, but can I eliminate the problem by converting them? Will Catholic Vikings continue raiding other Catholics? Or do I have to ...
4
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1answer
290 views

If, as a Cathar, I Holy War an excommunicated Catholic, will other catholics help him?

Usually when a holy war is declared, nobles with the same fate as the defender will join the war alongside him. Will catholics help an excommunicated catholic, if I, as a cathar, will declare a holy ...
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1answer
1k views

Why doesn't my heir inherit my wife's titles?

So I'm playing as the Emperor of Britannia, and I'm trying to get Scotland into the fold at the moment. So I thought hey, let me marry my son to the duchess of Moray so that his son, my future ...
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2answers
276 views

If I usurp a King, will all of his vassals swear fealty to me?

I am the King of Ireland, and I've conquered Wales and carved myself a good chunk out of the Kingdom of England. My goal is to drive the English off the island, and form the Empire of Brittania. ...
4
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1answer
1k views

How do I figure out which of my vassals are at war with each other?

I want to change my succession laws, but I can't because some of my vassals are at war with each other. This has been the case for many years, and I've changed crown authority to medium without ...
4
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2answers
10k views

How can I destroy an empire-level title?

I'm trying to cause the destruction of an empire-level title (say Byzantine Empire), to create the Latin Empire organically instead of starting with it. As ERE is (still) large, conquering all of it ...
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2answers
4k views

Why aren't my claims on duchies available as Casus Belli?

I'm exactly two counties away from being able to declare myself Emperor of Britannia. I have a stack of courtiers and other nobles with claims on various bits of English real estate, including several ...