This was always an issue in Rome. People were afraid their heirs would turn out to secretly be wannabe dictators, and you couldn’t do anything about it since you were dead. How would you go about making sure your heir was as close to your vision as possible, both outwardly and in their desires should they be emperor?
Most of the Roman emperors followed the tradition of getting murdered by their successor.
You write as if there any other ways to decide a successor.
Well, yes, I have heard about the who-wants-to-marry-my-daughter method. But I am not sure if it’s ever been done or maybe it’s just a fairy tale.
As in a marriage auction to see who had the largest “bid” or dowry? That would be wild if it were true.