It would be recommended that if you ever happen to find a Rostovian girl with claims, marry her, and them press those claims before Rostov takes the throne before you do. However, finding claims is quite difficult for the most part.
You are located next to the Baltic pagans, Finnish pagans, and catholic Scandinavians Holy wars creates opportunities for land gain in which you will require if you ever happened to become a strong kingdom. Connected to the Baltic sea, you will have allies as your dynasty rules all across what was Medieval Russia, but they are divided into may different kingdoms, civil war is guaranteed. Novgorod starts out with a decent ruler, who's father is the ruler of Kiev, and at various times will cover what is now St.Petersburg.
