As something of a history buff I’ve read about a fair few Kings and Queens through history. There are many of them, most mediocre, a lot of them objectively bad, however, now and again one stands out from the masses as a good one.
So, what (according to you) makes a good monarch? Feel free to point to a particular person, or event as an example :)
Having 20 years of relative peace to start off is no small feat given the size of Rome and the issues mounting at the time. Still, he failed to in securing a good heir to lead the empire after his death. His son, a mere 18 at his death would be rather unprepared to lead the empire. It might have been more prudent to adopt a more suitable heir.