But from the east still greater troubles were approaching. Vladimir, Sviatoslav, Vyacheslav and Igor, four sons of Yaroslav, were now dead, all leaving sons to whom their uncles would give no land. After Sviatoslav’s death in 1076, and when Vsevolod had gone to meet Izyaslav and yield Kief to him, Boris, a son of Vyacheslav, seized the throne of Chernigoff, but retained it only eight days. Then he sped away to Tmutarakan, where Roman, son of Sviatoslav, was ruler. There were five of those sons of Sviatoslav, who held good lands while their father was Grand Prince, but after his death they were driven from the lands by Izyaslav, their uncle. Glaib was forced to leave Novgorod and lost his life in the north among Fins. Oleg, driven from Volynia, turned first to Vsevolod, his uncle, but when he could get no assistance from him he went to Tmutarakan, in search of men to aid him. Meanwhile, Izyaslav and Vsevolod gave all disposable lands to their own sons. Two years later, 1078, Oleg and his cousin Boris led an army of Polovtsi and others to Chernigoff, where they attacked Vsevolod and defeated him. Vsevolod turned then to Izyaslav for assistance, and the two princes, with Yaropolk and Monomach, their sons, marched against Oleg and his cousin. Boris was killed in the front of the battle, and a spear went through the body of Izyaslav, the Grand Prince. Though these two princes fell, the battle continued till Oleg’s forces were broken and he was swept from the field, escaping with great difficulty. Thus one son and one grandson of Yaroslav fell in this desperate struggle between uncles and nephews (October, 1078). Now Vsevolod, the last son of Yaroslav the Lawgiver, became Grand Prince, and the difficulties before him were enormous. As already stated, Yaroslav the Lawgiver had six sons: Vladimir, Izyaslav, Sviatoslav, Vyacheslav, Igor and Vsevolod. Vladimir, the eldest son, had died before his father’s death, and had left one son, Rostislav, poisoned afterward in Tmutarakan by the Greeks of Chersonese. Rostislav had three sons: Rurik, Volodar and Vassilko. Rurik died early, Volodar and Vassilko lived long and caused much trouble. Vyacheslav, the fourth son of the Lawgiver, died Prince of Smolensk, leaving one son, Boris, who fell, as we have seen, on the battle-field with Izyaslav, his uncle. Igor, the fifth son, had died young, leaving one son, David. Vsevolod, the sixth son, was now Prince of Russia. Of Sviatoslav’s sons, four were living, Oleg, Roman, David and Yaroslav. Seven descendants of Yaroslav the Lawgiver were excluded, besides Vseslav, the wizard of Polotsk, who demanded equal rights with the sons of Yaroslav, and would not give peace till he got them.