The Mongols advancing in 1246 to Yakuba were attacked and driven off by Bagdad troops, and some of them were captured. Baidju did not feel himself master of Georgia while Queen Rusudan remained in Usaneth and refused all submission. In vain did he send her rich presents, and ask for an interview during which she and he might arrange, he declared, an alliance with friendship. The queen would not go from her stronghold, and gave no better answer to a message from Batu, who since Ogotai’s death, in December, 1241, was the first among Jinghis Khan’s grandsons. She sent her son David, however, to Batu as hostage, and placed him under that strong Khan’s protection. Baidju, wrathful at Rusudan’s stubbornness, resolved to give Georgia a ruler subservient to Mongols. Rusudan’s brother, Lasha, had a son born outside wedlock whom the queen had despatched into Rūm when her daughter went thither to marry Kei Kosru. This son of Lasha, named David, was detained for ten years in Cesaraea. Freed now for this special state trick, he was brought to the camp of the Mongols where certain princes proclaimed him, and took the oath of allegiance. Georgian troops and Armenians went with David to Mtskhete the seat of the Patriarch, who anointed him. David, the new king and tool of the Mongols, in 1246 attacked Rusudan in her fortress where, reduced to extremities, she took poison and in dying recommended her son to Batu the Khan of the Kipchaks and master at that time in Russia. The young King of Georgia set out to be present at the installation of Kuyuk (1246). The names given of subject rulers present at this great Kurultai show how far-reaching was the power of the Mongols: the Prince of Fars; the ruler of Kerman; Bedr ud din Lulu, Prince of Mosul; Yaroslav, Grand Prince of Russia; Ambassadors from the Kalif of Bagdad; the Prince of the Assassin Kingdom; and many other noted rulers. There were present also two monks who came from the Pope—one of whom, Du Plano Carpino, has left us an account of the Kurultai—and Rusudan’s son. The rivalry of the King of Georgia and Rusudan’s son brought about a division of their country. David got Georgia proper and Rusudan’s son, Imeretia, Mingrelia and Abhasia. Both men were called kings, but David was the Suzerain. The Cilician King Hayton who sent Sempad, his brother, to be present at Kuyuk’s enthronement, received from the Grand Khan more cities seized from Cilicia by the Sultans of Rūm.