
Originally Posted by
Chromium
The easiest way to gain authority quickly is to use spies and assassins. Merely keeping 5-10 in the field will gain you 1-2 authority points within 10 turns. Also, I prefer to use my Faction Leader and Faction Heir for constant battles and crusades; It takes a bit of practice but pruning your family tree will also earn good results in this case.
I usually kill off my faction leader when he's about 50. My heir generally has three authority points by then and gains 2-3 more within a few turns.
Always release and occupy with your FL & FH. You're going to loose Chivalry because of your spies so be sure to pick up good ancillaries too. Try to make them governors during the last turn of a building & set taxes at very high. It'll give them good tax traits. Try not to leave armies without generals- even if your FL has 10 authority; It's not good form and you're wasting the traits a general might've gained from the battles fought by that army.
PS- If you're really desperate, there's a cheat- FactionKiller (1,2,3). I usually use it when I've had a really awesome FL and it's time to choose the poor character's epitaph (Emperor Henry of the HRE-Conqueror of all lands from Krakow to Paris; Overlord of France, Poland & Hungary; Destroyer of Milan & Denmark.) You get the 'The Great' title on the family tree and it looks awesome. I don't recommend making a habit of using it; It's not very sporting to the AI.