Edit: In some respects Shogun was better in that the clan you were busy destroying would often keep harassing you with emissaries looking for a ceasefire to buy themselves more time.
Medieval does this too. When a faction starts to gets creamed it tries to sue for peace with at least one of his aggressors.

In fact, in one game, the turks jumped at my throat as they always do when playing Byzantium, then shortly sued for peace when the Golden Horde started pummeling them. Which I did not accept because destroying their weakened remaining forces at Anatolia was just too easy to resist.