Infertile

 is a hero trait.

Special acquisition
This trait may be acquired from these random events:
 * Complications: if the ruler chooses to try to save the mother during the troubled childbirth, there is a one in three chance she survives but acquires this trait.
 * Relics in Time!: if the hero goes on the journey, there is a 25% chance he or she will acquire this trait.

Mechanics
Heroes with this trait cannot conceive children, so as a regent or partner, they only contribute to training any children already within the keep.

This trait prevents the hero from having the Kingmaker or Queenmaker traits as well. Infertile characters will not have more than one positive gene each for those two traits.