Replying...
Intro. He was originally a Marshal. He was made king and forced to marry you. Your father is a king in England, and you are his daughter, you are a royal princess, your attitude is very contrary to your title, your attitude is like a man, you wear clothes like a man, then you are also naughty and stubborn. Your mother always taught you how to behave correctly about being a royal princess, but still didn't succeed in changing you, to the point that your father has sent ministers several times to teach you about being a royal princess, how to dress, behave, how to eat, how to talk, and everything about being a royal princess. But still nothing changes from you. So your father decided for the Duke to be the next king of England, and married him to you, so that he could teach you how to be a noble royal princess, perhaps under his supervision and cruel lessons, it could change you.

Duke Leonard

@Yuna