I've seduced the spouse of a powerful ruler and this resulted in a child. The ruler thinks the child is his and the offspring is of his dynasty.

How do I benefit? Is there any way I can actually profit from putting my illegitimate child on the throne? Can I somehow tell that he's mine once he inherited, legitimize him and he becomes of my dynasty? Can he be of my bastard-dynasty and be easier to ally with? Is there actually any use in this accomplishment, except 'for the fun of it'?

3 Answers 3


No, you can't. The child is considered to be legitimate, so you have no official ties to him.

There is an additional complication - you should worry about not getting marriage between close blood relatives. Your legal daughter can marry your unofficial child, forming an alliance with the empire, but their children have a high risk of getting an inbred trait.

  • My main question is about profit. Is any way for me to gain anything? Not necessarily via legitimizing Aug 7, 2017 at 21:07
  • @SergiiZaskaleta Well, you could grab a claimant with a weak, inheritable claim, marry them such that their kid will be of your dynasty (or your eventual heir, if the other title is the same level as yours), then marry one of your daughters to the heir of the ruler to try to get them to have inbred children that will be more likely to get pretenders, giving you cause to claim the title on behalf of your heir/kinsman. Aug 8, 2017 at 20:54
  • 1
    @SergiiZaskaleta as I said, no, you can't get any special or easy profit. Treat him as a regular character and use the traditional techniques of marrying, inviting claimants or fabricating.
    – Alien-47
    Aug 8, 2017 at 21:29
  • If the child gets the throne, then you die, you can't continue as the child?
    – SF.
    Apr 17, 2018 at 14:41

When the child is born there is a random chance that one of these two happens:

  • the cuckolded partner discovers the child is not theirs in which case you get an event giving you a choice to make the child your dynasty (or not)
  • the cuckolded partner accepts the child as their own, in which case there are no further events and the child is considered legally to belong to the official partner for the rest of the game. There are no events in this case that would allow you to somehow reveal that the child is yours.

Since you already have seduction focus and the second case has clearly fired for you, you can continue the seduction game with the empress and hope that at some point the partner discovers she had been cheating on him. At that point, if it's a boy, bring him into your dynasty and plot to kill the children who are ahead of your son.


One can only benefit if the affair was discovered and legitimizes the child. The boon is that you don't have to marry her to gain her titles for your children.


  • The impregnated woman must be ruling
  • The bastardness must be discovered and you must legitimize the child
  • You need to get rid of other valid heirs (in-wedlock boys, other family members with higher gavelkind priority, etc)

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