Answer:
B
Step-by-step explanation:
First of all the story did not take place yesterday. It is a story told about something that happened a long time ago. That's needed so we won't think "Well that sure couldn't happen today."
Second the sentence tells us that the king is 1/2 a gentleman scholar and half an unruly barbarian. We better be careful of this guy. He could welcome us with open arms into his kingdom or he could kill us by boiling us in oil or some equally horrible death. We don't know.
So your best answer is likely B. The dark ages is too specific. We don't have enough information to put it there.
He wasn't all cruel. He was 1/2 in 1/2.