A few suggestions about general events:
- Religious festivals! Pious lords who follow an appropriate religion, such as Catholicism or Sagrado Corazon, could host religious celebrations to showcase their own piety (and wealth). The festival would be an extreme display of piety, being costly both in resources and time, but the social opportunities provided by the event, as well as the amount of money that could flood the coffers of the priests, should make up for it. Different sects of a religion, in addition, could have festivals on different dates.
While a grand festival will placate the populace, in religiously mixed realms the display of fervent worship could very easily offend nobles of other religions, and could even incite differently religiously inclined counties to revolt. Alternatively, a Kind or Charitable (or Cynical) ruler could comfort a differently-religioned courter during this time, giving him a chance to become friends with him or her.
- 'Country Festivals' could be a way for even relatively humble realms in North America to make a little extra gold and prestige. Produce and livestock could be brought in and sold, and, if landed, one could impress one's neighbors and liege lord. A lord 'discovering' a farmer who's clearly a ex-soldier and would just need the right push to come out of retirement and serve at his court could be present, as well. For some regions, it could be localized as a more general harvest festival.
- A 'mysterious stranger visits the court' event chain. The 'stranger' could be anything from a wandering sage with a working knowledge of science, a practitioner of a far-off religion, or simply a person with a strong tongue and wit. Attracting a large following almost immediately, individual counselors or friends could suggest that he be expelled, or that the leader should follow his teachings. The implication should be, of course, is that the guy is Satan or Nyarlathotep or Raven or whatever is appropriate, and Occultists or learned individual could catch on what he's doing almost immediately and attempt to strike bargains for power.
And some stuff about religions:
- Talk about the Sagrado Corazon getting a heresy isn't new, and I support the notion that they could get a stereotypically evil one. All hail the Cult of Devils! Praise El Diablo!
-Nanissaanah who lead/participate in Holy Wars could gain the Ghost Dancer trait, which would function much like the Crusader trait in form and function.
-Neomayan's could have their own special Blot-type event, the Holkan Okot, in which the top liege is ritually honored as a great warrior by his vassals, and he in turn honors his vassals. The general feel should be that of a yearly reaffirming of mutual cooperation, as opposed to the top liege telling everyone who's boss once a year. Friends for everyone! (Having a stable realm in a aggressive region could be a great boon, after all)
-Mictlantic's could get a Blot-style event as well, but with a focus more on piety instead of prestige. Also, massive amounts of human sacrifice. There's several Aztec festivals that could be used as a basis; the best would probably be Tlacaxipehualiztli.
-Uhomche could have annual harvest festivals known as Misa Milpera, in which the various rain gods are honored and commoners are allowed to feast with their lieges in the sweltering summer, which could open up many opportunities for some lords to scout for talent or strength. Others, of course, could just mix with the populace and assure his continual popularity, along with possibly making friends. If he say's something stupid or proves to be unpious, though, there's a small chance that he could be torn apart by a mob of peasants.
- A follower of the Sol Invicta religion, if he or she has both a kingdom and a very large amount of piety and prestige, could be declared a 'Sol Princep'. The Sol Invicta, I imagine, would have a bit of a messiahdom focus, being surrounded by what could be perceived as death cults and false gods. The 'Sol Princeps', the chosen ones of the sun goddess, are those messiahs. A Sol Princep leading a army would give his army would bring a very large moral bonus, because while the Mictlantic's think their rulers are gods, Sol Invictia followers truly think that the ascent of a Princep is a sign of the End Times, so they fight with pure and total religious zeal. Playing the Sol Invicta could be akin to playing as a Zoroastrian, in that everyone want's to be the Saoshyant because being the messiah is pretty great. As a bonus, given that Lucifer is meant to be the goddess's servant, Sol Princeps could be considered Lucifer on earth.
-The Fallen Star religion could have star-watching festivals, and Fallen Star priests and philosophers could gather together for annual debates/drinking contests. These meetings could improve technology and foster friendships between skilled people in your realm, if you happen to have a high Learning as well. (Extremely unlucky individuals could discover the domain of the Outer Gods or learn that the moon is actually covered in eyes instead of craters, but that's another story.)