"Blaze: Salvation 2" is a relatively unique villain in the game. You will defeat him during the task. You can choose to kill him or not to kill him. The two options are very large. The difference is, first of all, if you let Brabant live, Henry’s image at the end of the story will be more positive.
What is the difference between killing Brabant if the Kingdom of Heaven saves 2?
In the search for Samuel, you need to fight Brabant. He grabbed Samuel and tied him to the barn.
After winning the duel with him, you will have the opportunity to choose to let him live or kill him. The only thing this decision will affect is the final scene of the game.
We don't want to spoil what happened, but if you let Brabant live, Henry's image at the end of the story will be more positive. Although it wasn't so glorious to kill him, perhaps he deserved it, considering what he did. Ultimately, make the choices you think are best for the story you build in the game.