From Crusader Kings II Wiki
Jump to: navigation, search

Plot succ seniority.png Seniority is a succession law where the eldest member of the dynasty inherits all titles.

The patricians of merchant republics always use this law, although they can override it with the honorary title of Designated Heir.

Feudal rulers (other than Muslims and Indians) can also choose succession by seniority. Without the Conclave DLC, for realms subject to crown authority, it requires Medium crown authority or higher.

If used by the Byzantine Empire, Born in the purple  overrides age for adult characters. Thus, your son may become heir when he turns 16, pulling ahead of an older relative who is not born in the purple. This does not apply to kingdom titles held by the emperor.


  • Tends to unite the titles in the dynasty, in contrast to gavelkind.
  • Avoids regencies due to child rulers.
  • Can lead to greater score if successive characters have high prestige due to dynasty prestige or titles.
  • Truces and Law change cooldowns reset more often - allowing you to start more wars and pass more laws.
  • With the Conclave DLC activated: can be passed with any administration.


  • Older rulers may suffer from the "Short Reign" opinion penalty for their entire rule.
  • May be difficult to revert to another succession law, due to the 10 year rule.


A ruler under seniority succession will face the following opinion modifiers:

Character Opinion modifier Reason
Oldest child -30 He would certainly prefer primogeniture
All other children set to inherit -20
All other dynasty members +10 They may get a chance to inherit at some point, as heir is moving between distant dynasty branches.
All vassals -10
Feudal electiveTanistrySeniority