Families

[Tigran The Great]

People keep wanting to add more and more factions but instead add more families when you chose what faction you also chose what family .Example you play as Armenia you also chose the hetumian family your rivals the rubenians are controled by the AI you can create aliances with the other by having your genarals marry or start a civil war with the weakning your cause . This would make the game a lot more interesting you not only need to watch out for enemy factions but also rival familys

[wudang_clown]

Well, in this case one more family would take one more faction slot, so it would be just the same if it comes to faction slots.

[Tigran The Great]

Even its the same units and same everything its still another faction?

[wudang_clown]

One faction can only have one family tree, as far as I know.

You want to have two families, then you need two faction slots.