Ironborn Valyrian is a project that took me a long time to make. Not because it was hard, but because I stopped playing CK2 and I didn't get around to putting the finishing touches on it.
Ironborn Valyrian has two things it does. One is create a special culture, Ironborn Valyrian, that spawns when an Ironborn kid has a High Valyrian mother or father that instead makes their culture Ironborn Valyrian. With the Ironborn Valyrian culture you get all the benefits of Ironborn with the added dragon hatching/taming bonus equivalent of Westerosi Valyrian. The other is a kid born of Ironborn and High Valyrian parents that is Ironborn Valyrian is able to culture shift their capital once a lifetime to show the dominance of Ironborn Valyrian culture
'A Game of Thrones' is a user modification for Crusader Kings II not affiliated in anyway with Paradox Interactive or the rights holders to 'Game of Thrones' and 'A Song of Ice and Fire'.
This modification and it's team takes no income or profit, whether it be through donations, advertisements or any other form of revenue.