After that the princes of Ryazan without exception remained obedient to Vladimir. The troubles just described occurred in 1185–86, and so strong were the relations formed then that years later, when Constantine, son of Vsevolod, was crowned in Vladimir, all the Ryazan princes were present to render homage. In 1184, being again friendly with Rurik of Bailgorod, and David of Smolensk, as well as with the Volynia princes and the Prince of Galitch, Sviatoslav of Kief invited all princes to join him in a war against their common enemy, the Polovtsi. The southern princes promised Sviatoslav aid, but in Chernigoff his brothers and cousins were more difficult to deal with than remoter relatives, because of questions touching land in Chernigoff. His sons needed territory in that region, and princes, when dividing lands, nearly always disputed. Still his brothers and cousins did not refuse directly. The campaign, they said, was arranged awkwardly for them. If he would change the plan they would go with him. But other princes had assembled, and with them warriors in sufficient number. With the Kief prince marched his sons, Glaib and Mystislav, also the gallant Vladimir, son of Glaib, from Pereyaslavl on the Alta. From Volynia came Roman, son of Mystislav, who brought with him two cousins, and also princes less distinguished. From Smolensk came Izyaslav, son of David, and Rurik came from Bailgorod. Yaroslav Eight Minds sent a contingent also. The allies, under Sviatoslav, came upon the enemy near a river, now known as the Orel, but then called Erela by the Polovtsi, at a place where the Vorskla and the Erela, both tributaries of the Dnieper, flowing almost parallel and close to each other, form a long tongue of land bounded by the Dnieper and those two rivers on two sides and one end. At that time this place was called simply “The Corner.” In that corner was won a great victory. When they were nearing the Polovtsi, the daring Vladimir, son of Glaib, therefore grandson of Sviatoslav, begged for the first place. “Let me go against them, O my father,” implored he. “They have turned my lands into a desert. Let me go in advance with my men to attack them.” But the sons of the prince would not consent to be behind Vladimir in valor, hence Sviatoslav sent forward with his gallant grandson all the youngest princes of his guard, adding twenty-one hundred Cherkasi to strengthen their forces, but Vladimir led on with such swiftness that the princes going with him were left far behind, and he with his single command met the enemy in “The Corner.”