Aspects of this topic are discussed in the following places at Britannica.
...Vladimir-Suzdal (and later Moscow) formed the core from which developed the future Russian state (see also Grand Principality of Moscow). On Ukrainian territory, in the southwestern part of Rus, Galicia-Volhynia emerged as the leading principality.
We welcome your comments. Any revisions or updates suggested for this article will be reviewed by our editorial staff. Contact us here.
Regular users of Britannica may notice that this comments feature is less robust than in the past. This is only temporary, while we make the transition to a dramatically new and richer site. The functionality of the system will be restored soon.