Father-Son Advice the Royal Way

After reading the letters which Louis XIV and Peter the Great wrote to their heirs, as well as hearing the stories of how Frederick William I of Prussia treated his own son and heir to the throne, post a few comments on their paternal advice and how the sons responded. Whose advice was the best, whose was the worst? Which was most useful for a future monarch? With which of the sons' responses, if any, do you most agree? Please respond by Tuesday 11/21, and remember that if you choose to disagree, do so in an agreeable manner.