Responses

...did you even read the story? It's quite clear that the Duke was ordered by THE Emperor to murder that clan. The Duke didn't want to. It was either him and his people, or the Mortia clan.
The emperor is the bad guy here. He put two groups he wanted gone against each other and, regardless of the outcome, plans to destroy the survivor.
Well I hate the duke
I mean he killed whole clan and i think fl is decendent of that clan
Just because he acts like good father that doesn't mean he should be forgiven for crimes he commited
Does he think he's itachi Uchiha