I find this is the situation most likely to have your ruler die without a heir, which is weird since if your ruler lived to his 80s, he probably had quite some grandsons. However, the game does not seem to model that. If your 60 year old heir dies, either you immediately get another 60 year old heir, or you will get a few years without any heir...
And in this case, even if you are Muslim + Iqta (so you have +200% heir chance) you can still end up without a heir.
WAD?
And in this case, even if you are Muslim + Iqta (so you have +200% heir chance) you can still end up without a heir.
WAD?