Well, mine is not of success, but of agonizing failure, and one of the reasons I sent my heroes away and never looked back.
So, I've completed dozens of quests, capturing a noble should be easy right? I mean, I've slaughtered 3-1 odds against black hunters, laughed off 80+ man armies of Swadians. . .one noblemen with less guards than half my number? Bah, easy.
So, I get there, and because I'm haughty, I rush in full tilt, bringing my cavalry behind me. Except, through some miracle, Borcha out-rides me, and lances the nobleman through the chest, killing him. . .after glaring angrily at Borcha and wishing I was playing save without quitting. . .I go on, several days later, getting another noble quest. . .this time I tell the my army to wait here, I can handle 16 guys. So I ride out, paranoid I'll kill him, I clean off his guards before I turn to kill him. . .just as an arrow nails him in the skull, killing him. The only person in my army with a bow that can fire from horseback? Marnid. So I get a third noble quest later. . .and I disarm all the ranged weapons on both characters, leave them behind, and have them dismount, then ride out to fight the noble and his guards. I charge madly at the throng of guards, determined to get the noble quick, as I clash with their lines, I take note that ALL of them are armored knights. . .no noble. So I break away and look around, just intime to see the noble, who took a different route from his guards, riding into my dismounted troops. Before I can even turn my horse that direction, "Noble was killed by Marnid" scrolls up. . .The next time I got a noble mission, I told the count to go to hell.
(I have since successfully done them, but didn't even touch the missions for a good while after that excapade)