Meanwhile it was settled that Rūm must go to both brothers. All that lay west of the Sivas was given to Yzz ud din, and everything east of that river fell to Rokn ud din, but the officials of the latter wished him to have all that Kuyuk had first given him. Yzz ud din’s partisans declared that their sovereign was resigned to the will of the Grand Khan, and would take whatever appanage his brother might give him. Rokn ud din credited this statement and went to a meeting place. He was seized with his vizir and taken to Konia. No harm was done him, however. Yzz ud din joined in the sovereignty Alai ud din his third brother. Kuyuk died in 1248; Mangu his successor was inaugurated July, 1251. In 1254, three years after Mangu’s elevation, Yzz ud din was called to Mongolia, but he feared to absent himself, knowing that Rokn ud din had many partisans, hence he decided to send Alai ud din the third brother, who set out, with many presents, traveling along the Black Sea and the borders of Kipchak. Yzz ud din craved forgiveness from Mangu for sending his own younger brother instead of appearing in person. This, he said, he regretted most keenly, but he was forced to remain and defend his possessions from Greeks and Armenians, his most implacable enemies; he hoped soon, however, to offer homage in person. Rokn ud din’s partisans now sought means to uphold the claims of their master in the presence of the Grand Khan. They forged a letter from Yzz ud din to Tarantai and his colleague, in which the Sultan commanded to confide Alai ud din and the presents to the chancellor Shems ud din and the Emir Seif ud din Jalish, the bearers of the letters, who would go with the prince to Mongolia. Tarantai and his colleague were summoned to Konia. The Emir and the chancellor set out with this letter and overtook Alai ud din at Sarai, Batu’s capital. Batu gave them an audience and to him they explained how Yzz ud din had discovered Tarantai’s evil plotting and also that of his colleague. On a time, as they said, Tarantai had been stricken by lightning, hence should not stand in the presence of Mangu. Shuja ed din, his associate, was a leech greatly skilled in all magic, and had with him poison to use for the Grand Khan’s undoing; hence the Sultan had sent them to replace those two envoys, who must go back immediately to Konia. Batu commanded to search the effects of the envoys; certain roots were found in them, among other things scammony. They directed Shuja to swallow the drugs in his baggage. He swallowed parts of each except scammony. Batu thought this last to be poison, but his doctor declared it a plant used in medicine. After that the Khan decided that Alai ud din must go with the new envoys, while the two others must take with them the presents.