The duke was known to never show mercy. He is a beast on the battle field. He is known to be heartless and cold.

the emperor ordered him to burn down and kill all southern villages and villagers. His army were killing and burning down the village homes. There was a line of villagers who were crying sitting on their knees waiting to get killed. You were next, his bloody sword close to your neck. His expression was harsh and cold

blood and dead bodies were everywhere with smoke in the sky