
The archduke Alexander is just the mc but from a different generation.
They both take care of 2 others who get into battles with one another. 1 of each of the 2 whom they care for is royalty

The king talked about the duke(who is dead) keeping him and the bishop out of fights and trouble. While for the mc that's what he does with the prince and original FL of the story. Which explains why the king sees Alexander(the duke) in MC.
Perhaps MC does first. Actually let me not speak that into existence
Interesting new king. Seems like a test to see if mo ah is worth helping fight. They are judging her decision making skills to see if this isn't ignorance ヾ(☆▽☆)