Töregene Khatun
The Mongols did polygamy, meaning they married many people each. Ögedei Khan's favorite son was Kochu, who was his son but not Töregene's, rather another wife of his. He had chose Kochu's son Siremun to become ruler after him because his father suddenly died in China in 1237. But some sources say that Khoch was a son of Töregene and she did not want Shiremun to succeed. Töregene did not agree the choice in favor of Güyük, but despite the huge influence she had on him, she was not able to make Ögedei to change his mind. She did what she wanted through clever planning and trickery. When the lesser Khans made her regent after her husband died, she gave her favorite people high positions in the imperial household and started what was a good plan to make her son Güyük become ruler. When Temüge Otchigen, the youngest brother of Genghis, made an army and tried to take the throne, though he did not, Güyük quickly came to meet him. Töregene managed to keep a Kurultai from happening until it was sure her son Güyük was liked by the most people. Töregene gave power onto her son Güyük in 1246. She retired west to Ögedei's appanage on the Emil.