Ukraine
Numerous princely feuds, large and small wars between different lords, were tearing Rus. However, the ancient Ukrainian state did not fall apart.  It only changed the form of its government: The personal monarchy was replaced by the federal one, Rus came to be co-ruled by the group of the most influential and powerful princes. Historians call this way of governing "the collective suzerainty." The Principality of Kyiv remained a national center and the residence of bishops.