I had a "bad heir day" in my Turkish late campaign. My heir apparent was a 2* alcoholic, my king in his mid-fifties, and the next prince in line was a 4* materialist with good dread and piety. So, the obvious thing was to knock off the 2* waster. Started moving my 4* assassin into position... then the king goes and dies!!! For once I decided to reload, move the king to another province, and then try again. Second time lucky... my royal line is looking a lot cleaner, though somewhat shorter than it was Still can't find anyone to marry my king though....