Quote Originally Posted by manboobs
The AI are bastards i find it next to impossible to make alliances myself i have to wait for them to intiate the alliances otherwise they just say, go away we dont want a ceasefire even though youve taken all my provences except one besieged me in my last one, only have 100 men surronded by 5000+ enemy. Nah im good ill take my chances.
Err, I don't think it's possible to negotiate a ceasefire whilst besieging the other faction in its last province...

Now, if you were to pull your beseigers completely out of the province, let them retake it for themselves and drop emissary on their leader on the following turn, you just might get it to work. Technically, any provinces in dispute (ongoing sieges) means hostilities are still in progress and you can't request a ceasefire under those conditions.

As per Papal warnings you have to conclude sieges by winning an assault or by totally withdrawing from the province, within the stipulated time limit.

Then again, the comment, in one of the posts above, about 'if you've taken one of their homelands' inclines me to believe that they still won't play ball.

As I see it, the reasons you want the ceasefire at all are:-
a) you've eliminated them as a threat but do not want to completely finish them off since subsequent under-garrisoning will virtually assure a re-emergence - one which is likely to succeed if troop moves back to there will take you more than a few turns;
b) you want your beseiging army to go elsewhere and clobber someone else round about now, and cannot also afford to leave money-eating garrisons behind to quell border troubles with your new 'protectorate'.

They know all that. Now do you see why they won't take it lying down?