So I have noticed this happening to me quite a bit in campaigns..... my faction heir will never have children like he will go 50 years chilling in the capitol even, even as the king, and married, and will never ever have children, sure the members of my royal family or are by marriage will have tons of children, but if any of them become king then the bloodline will end and they will become a "Regent" with absolutely no authority to do anything, so why is it that my king and faction heir will never have children, not a single on after 50 odd years of being able to create children?!?!?!?!