Over our previous few episodes, we’ve taken you from the ascension of Ogedai as Great Khan in 1229 to a whirlwind journey of conquests across Asia. The final conquest of the Jurchen Jin Dynasty in North China, the subjugation of the rest of Central Asia, Iran, through the Caucasus into Anatolia, and the famous great western campaign, wherein Subutai and Batu led Mongol forces across the western steppe, conquering the independent Turkic Cuman-Qipchaps, Rus’ principalities, and culminating in battles in Hungary and Poland. Now, let us step back to the latter half of the reign of Ogedai and his ultimate demise at the end of 1241, and the seeds this sowed for the future of the Mongol Empire. I’m your host David, and this is Kings and Generals: Ages of Conquest.       We left off with Ogedai at the highpoint of his reign as Great Khan. Episode 13 detailed his establishment of the imperial administration, taxation systems, construction of the imperial capital of Karakorum and ordering of new conquests, while the following episode detail the fall of the Jurchen Jin Dynasty in 1234. The final conquest of the Jin, the longtime foes of the Mongols who had managed to survive the mighty onslaught of Chinggis Khan, must have been a moment of great pride for Ogedai. He oversaw the monumental expansion of the Mongol Empire, though he himself was not at the head of most of these armies. Nonetheless, in the first half of the 1230s Ogedai took a direct and energetic role in government. Under his watch, skilled figures like Yelu Chucai in north China, Mahmud Yalavach in Central Asia and Chinqai as Chancellor became overseers of reconstruction after the initial conquests. Ogedai truly wielded an authority and influence across Asia, not to mention an immense wealth, which few monarchs in history can compare to.        Yet, the clouds formed over Ogedai quickly. The death of Tolui, his brother and close confidant in 1232, likely from excessive alcoholism, was a blow he struggled to recover from. The death of his son and heir Kochu in the early rounds of the Mongol-Song conflict in 1236, which began months after the destruction of the Jin, was another severe blow, marking his major withdrawal from government. Depressed, Ogedai increasingly absolved himself from the function of state to partake in excessive drinking and feasting, his health declining precipitously. As early as 1235, when the great western campaign was beginning, Ogedai may have already not been in physical shape to join them. His judgement clouded by alcohol and disinterest, the Khan was easily swayed by smooth talking officials and wife, Torogene, whose interests were more often personal enrichment than the rebuilding of conquered territories.   Yelu Chucai, the Khitan minister who fought vigorously to impose a proper and fair government in China, felt these effects keenly. Chucai, you’ll recall, had managed to persuade Ogedai against eradicating the northern Chinese and instead implement a regular taxation system, and reduce the extortion of the local people by rapacious officers. At the start of the 1230s, Yelu Chucai was met with success, and with Ogedai’s support implemented further reforms. In 1231 he was made head of the Secretariat for North China, placing him in charge of the region’s civilian government. With the fall of the Jin in 1234 and Mongol rule now established across all of northern China, Chucai was able to convince Ogedai to launch a census of the region, undertaken by Shigi Qutuqu, Ogedai’s adopted brother, and help encourage the displaced population to return to their homes. Chucai even convinced the Mongols to implement a household tax, lessening the individual taxes the Mongols used in Central Asia. Further, the grain levies were now assessed based on the value and quantity of land, rather than a flat rate. These efforts alone greatly reduced the tax burdens on many, and in 1235 Chucai was at the height of his influence. In 1230, he had collected 10,000 ingots