Question

Why is a Roman numeral often used after a King's name?​

Answer 1

Explanation:

Roman numbers which are also known as regal numbers are used to distinguish people who have performed same duties or they are connected with some similarities.

For instance, most commonly they were used to distinguish monarchs who possessed same names.

This method was introduces due to the fact that the names of monarchs in he history were not very different. Most of them had same names. Therefore, it was necessary to devise some method to differentiate them.