I checked the forum a bit but I couldn't find enough information about the Crusading Noble in forum. (Probably my fault, since it is ery important topic)

How can I please them? They say with giving him victories, but he does not have to be the commander.
So how many men must I kill to please him?
Only the men who killed by English or French troops of his own does any good? Or having him in the army is enough?