Hi Griefor, 
I am a recent sub as well. Although I got severely broken and almost destroyed C'tis where as you got still powerful with lots of men and provinces and income Marignon. 
First point I guess is I don't think Marignon was well liked in his earlir incarnation, talk of NAP breaking and double dealing and all that. 
Secondly I don't think Marignon had any actual plans. Flaming arrows and lots of crossbows seemed to be about it, and if that didn't work then he was screwed. 
There is a discussion a bit earlier where profanicus killed SiyfkA's golem with magic duel. But my advice would be to get stuck into Ulm and leave C'tis alone. 
