Title claim inheritance Upon succession, eligible children are given pressed claims on titles they did not inherit nor vassalise. If the parent held pressed claims themselves, unpressed claims are inherited in their stead. Unpressed claims cannot be passed down, but will revert to the former status if pressed in a war.
To do this, players must simply click on the ruler of the land that they desire and scroll down to the bottom of their actions page. There should be an option that says "Offer Vassalage" which when pressed triggers a letter to be sent to the selected ruler, where they will respond with their answer.
Gaining liege titles You can use the "Fabricate Claim on Liege" plot if you are a direct de jure vassal. You can get claims for your heirs by marrying your liege's relatives into your family. Your chancellor may be able to fabricate a claim on a duchy or in special cases a kingdom.
You CAN claim an entire country all at once. Marry a lady who has a claim to a large piece of land (say, a whole kingdom), press her claim, win, she becomes queen/duchess, the children you have with her will inherit that stuff now.
If you have an unpressed claim on a county, you can go to war with your reason being to press your claim. You can do the same to duchies and kingdoms if you're trying to go to war with that duchy or kingdom.
Any ducal or kingdom title can be created by a character who controls at least 51% of its De Jure Counties as long as they hold either two titles of lower Rank or one title of equal or higher Rank; empire titles require at least 81% of their De Jure Counties.
You just right click the person holding the title and then select ``buy claim''. It's right above ``request claim'' where you usually get it from the pope.
Request claim from head of faith (if you have one.) Fabricate claim sometimes will randomly grant a claim on Duchy. Claim Throne hostile scheme from Stewardship Lifestyle (Meritocracy) will give you a pressed Ducal claim against your Duke liege.
Title claim inheritance Upon succession, eligible children are given pressed claims on titles they did not inherit nor vassalise. If the parent held pressed claims themselves, unpressed claims are inherited in their stead. Unpressed claims cannot be passed down, but will revert to the former status if pressed in a war.
Comments Section The only way to get claims on a kingdom/empire is to inherit them or fabricate one from your overlord - from the stewardship perk. You can also use the holy war/invasion cb to take all of the characters land in a kingdom. A great holy war can take all the land in one kingdom in one go.