Sorry for bad Englisch: My question is since when were rulers counted? I'm thinking about e.g. Philipp II. of Macedonia, was he known to his subjects as "the second"? Or was it later, maybe the Middle Ages? When did this practice start?
Worry not, really I am sorry für mein schlechtes Deutsch. From earlier answers, it seems regnal numbers became common in the later half of the Middle Ages. Before that epithets/nicknames were used to distinguish rulers as u/Tigris_Vadam writes about here. In this thread our u/Valkine discusses when numbers became commonly used for English kings