Name of Chinese action/war movie?

This is the plot summary. The hero who's the head of the emperor's army has a beautiful wife. The emperor's thug son wants her but gets beaten by her when he tries to make a move on her. The emperor sends the hero to some far war and punishes him saying he plots against the empire. In the meantime the son and his gang kills hero's wife and the prime minister. The hero's student who's sword fighter goes to his master with the message of his dead wife and prime minister written in blood in a piece of clothe trapped between his lips and he kills around 100 soldiers who's guarding the hero and finally gets killed and his head falls at the feet of the hero with the message. In the revenge fight the hero splits emperor's son in two and avenge his losses. I want to know the name of this movie pleae