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Kimberly

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So to summarize, as a Christian lord you have to have a claim to the top title to get an invasion CB and you have to get approval from the Pope.

You need to have a claim to the highest title or have a smaller realm than that of the king you're invading. (Papal approval is required either way.)
 

Lwantssugar

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Here's a sure fire way to get an invasion CB as a catholic (assuming you meet the prerequisites)
Wait for pope to call a crusade, go on that crusade, if you win give all the land to the pope, that will give a nice piety boost and put your relationship with him somewhere around +300
 

dorukdorucu

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Here's a sure fire way to get an invasion CB as a catholic (assuming you meet the prerequisites)
Wait for pope to call a crusade, go on that crusade, if you win give all the land to the pope, that will give a nice piety boost and put your relationship with him somewhere around +300
Sometimes that isn't enough actually. It's pure luck as the pope practically needs to have a negative opinion of the character you are trying to launch the invasion against.
 

Lwantssugar

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Sometimes that isn't enough actually. It's pure luck as the pope practically needs to have a negative opinion of the character you are trying to launch the invasion against.
That's more for an excommunication than invasion, it's how I snapped up England. His opinion of a king doesn't have to be as low as it does for that
 

dorukdorucu

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That's more for an excommunication than invasion, it's how I snapped up England. His opinion of a king doesn't have to be as low as it does for that
Whenever I try to get an invasion, he has a base reluctance of -2 and 100 opinion only nets me +3 so it's more or less either 10-20 or minus opinion or no invasion. If there are other modifiers i don't know of, please add them.
 

Mutineer

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Thanks for the info., but is seems profoundly silly.

So is the deal you have to fabricate a bunch of claims before going to war or fight a war per de jure claim? Is there anyway to accelerate your conquest?

Yes, you can. One of way is to create and press vassals claims on bigger chanks of land, like duchy (conditions apply).
After you got >=50% of land you can usurp kingdom. Old king vassals will become independed, and now can become your vassals with out war(condition apply) or you can go to war with each of them independently.
 

dorukdorucu

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When you use the invasion CB do you need to siege all the holdings in a county to get it at the end of the war or just the first/capital holding?
The capital is enough for getting the county, however baronies continue to belong to whoever owned them in the first place and mat create quite a headache for you.
 

nestorius

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Its more complicated with Christian invasions. You also need to have less titles or something along those lines than your target.

So while you can invade England as Normandy, you cannot invade Normandy as England.