Boring explanation: your sibling or uncle had a child.
You're free to envision something more supernatural though, some historical Indian royal houses claimed to descend from a human and a more divine ancestor (a human mother in the case I'm thinking of though and more in the ck2 era).
Edit: didn't read that properly, it may indeed be a bug given the modifier. I'd still consider the above in your case as the damage is already done
You're free to envision something more supernatural though, some historical Indian royal houses claimed to descend from a human and a more divine ancestor (a human mother in the case I'm thinking of though and more in the ck2 era).
Edit: didn't read that properly, it may indeed be a bug given the modifier. I'd still consider the above in your case as the damage is already done
- 1