General Tips
Get a good NPC army leader unless your noble has killer stats (rare among the French). You aren't sure which are killer stats? Run your family dump file to a Herald or a more experienced (and friendly) player, and they'll analyze your NPCs for you. Do not ever get caught in a siege over reset. Remember sieging costs time. DON'T RUN OUT OF DAYS IN THE MIDDLE OF A SIEGE!!! You'll be captured almost for sure: disaster for you.