a direct vassal who refused to stop backing a plot.

a direct vassal who rebelled, and liege won.

Revocation reasons ДЄ claim on the vassal's title allows revoking it.Д¬ertain opinion modifiers allow revoking one title within a limited time:

Counties cannot be revoked if occupied or under siege.

You must have enough prestige (even though prestige is only spent when revoking without justification).

The title was not granted recently (to any character, within the last year).

The title is neither contested in, nor the justification for, any ongoing war.

Clan titles and Khans' capital counties can never be revoked (but Khagans can absorb clans instead).

For example, religious head titles can only be held by a character of the correct religion.

Cannot revoke the last duchy+ from a merchant republic if the doge lacks extra holdings ( bug?).

Cannot revoke the last temple holding from your religious head.(You must revoke the duchy or retract the vassals first.) Cannot revoke the last county from a duke+, thus destroying the duchy+ title, if they have count+ vassals.not in revolt)ДЇurthermore, the following restrictions apply to title revocation: Target is your direct vassal (permanently, i.e.You cannot revoke titles from a ruler if you have a non-aggression pact.Otherwise, you may revoke without a valid reason, at the cost of angering your landed vassals (almost as bad as tyranny). A valid reason is required if you are a republic or have a truce.If your vassal is tribal and you are not independent, you probably won't be able to revoke his titles.

If tribal, independent and without, Tribal organization must be at least Limited.(Navigation hint: F4, Realm Law, then SCROLL DOWN!) With, you must have the Revocation Allowed law.Without Conclave, you must have at least Limited Crown Authority, or not be subject to a crown authority law.

Crusader kings 2 vassals