The barbarians had penetrated even into Austria, and a corps advanced to Neustadt near Vienna, but retired on learning of the approach of a large army. After the destruction of Strigonia, Kadan was sent with a detachment against King Bela. Bela, who had taken refuge in Austria, retired with his family to Agram in Croatia, where he remained during the summer. Learning that Kadan was marching toward Agram, he went to Spalato on the Dalmatian coast, and then to Trau. Kadan marched with marvelous rapidity. Halting for a few days at Sirbium River, he assembled the Hungarian prisoners whom he had seized on the march, and had them all put to death. On arriving at Spalato and learning that the king was not there, he advanced at once to the neighborhood of Trau, and camped upon the bank facing the island in the Adriatic where Bela had taken refuge. There the Mongols remained through the month of March, and then, after pillaging Cattaro, Suagio and Drivasto, and killing every man, woman and child who fell into their hands, they returned by way of Herzegovinia and Serbia to join Batu. While on the march Kadan received orders to hasten, as all Mongol princes had been summoned to Mongolia. Daniel and Vassilko, on hearing that Batu had left Hungary, delayed for a time in returning to Russia. They knew not where their families were, or indeed if they were living, and their delight was unbounded on finding them. On the way home from Poland they could not draw near Brest, because of the terrible odor of corpses. Very little remained of the former Vladimir, and the ruined churches were filled with dead bodies. Batu, who had brought terror on all Europe by the destruction wrought in Hungary, Croatia, Serbia, Bulgaria, Moldavia and certain portions of Poland, was not pleased with those lands. The West was too narrow for a nomad people, and Russia became the real province for Mongols. Hungary and Poland suffered little in comparison. Batu pitched his tents and built Sarai, as has been stated, on the bank of the Lower Volga, from where it was convenient and easy to send troops in every direction, and keep conquered Russia in obedience. The Golden Horde, as thenceforth men called the Khan’s residence in Russia, was noted for wealth even in Batu’s day. Jinghis Khan, who died in 1227, was succeeded by his eldest son Ogotai, who reigned from 1229 to 1241. During that reign, Batu completed his conquest of Russia. Russia, subject now to the Mongol, learned that a new sovereign had appeared in Mongolia, but Batu, the grandson of Jinghis Khan, remained their ruler. To him was given entire control of the “Kipchak Horde,” his possessions extending from a line somewhat east of the Ural Mountains to the Danube. He now counted all the Russian land as his property, and declared to its princes that they might not live on the Khan’s land unless they bowed down to him. Thus began the heavy yoke of the Mongols, which was to last for more than two hundred years.