Yaroslav turned for assistance to Mystislav, who was willing to reinstate him by force even, if need be. It was the proper policy of Kief to act thus, and be the arbiter in Russia. But times had changed much, and Kief men were no longer willing to fight for helpless princes. Yaroslav, unable to fight his battles alone, and forced to withdraw from Chernigoff, settled in Ryazan, where he founded a new line of princes. Mystislav reigned seven years and died in 1132. He was succeeded by Yaropolk, his brother, who, himself without issue, swore to provide in all fairness for Mystislav’s children. He strove to do this without offending any one, but was unable, as there were not places enough for the two lines of landless princes. The first step he took was to summon from Novgorod Vsevolod, son of the late Mystislav, and give him Pereyaslavl on the Alta. Thereupon Yuri Dolgoruki marched with astonishing swiftness from Suzdal to the Alta, fell upon Vsevolod and expelled him. His reason for this act was that for three reigns Pereyaslavl had been, as it were, the stepping-stone to Kief, the capital and first place, the transfer being made from Pereyaslavl. Dolgoruki, as uncle to Vsevolod, was his senior, and would not permit him to settle in Pereyaslavl and thus obtain the succession. The sons of Mystislav rose up now against their uncles, and, to gain force sufficient to war with them, made a league with their cousins, David of Chernigoff and Oleg, his brother. Yaropolk, Mystislav’s brother, and brother of Yuri, moved against Chernigoff. Mystislav’s sons helped the Chernigoff princes, and when these sons attacked their uncle, Dolgoruki, Vsevolod, son of the late Oleg the endless quarreler, went to help them. Meanwhile the condition of Kief was almost repeated in Novgorod.