Which Chapter Great Demon King

MC gotten a new fief or castle in which he later managed to seduce the opposing female bandit General and avenged her grudge. I could only remember to that point, please help which chapter is that part. (NU should really add undo button when checking last read chapter, cause I often miss clicked or touched when checking up the novel page...)

 

There is a log
From where u can see the recent change made to your reading list

 

Did you maybe meant, Helen Tina the Duke of Helon Duchy's? If so, I think the MC gets revenge for her in chapter 361 & 362.