Would it be possible to gain prestige and in diplomatic relations if after a awar you make particularly reasonable and moderate demands, well below what you could demand based on warscore alone? I was thinking specifically of France in the War of Polish Succession, where despite losing in Poland (but succesful in the Italy and Lorraine), France managed to get Lorraine for Stanislav Leckinzski to eventually be inherited by France, and by being so 'reasonable' kept England out of the war.