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Al-Altan (c. 1196 – 1246) was the youngest child and favourite daughter of Genghis Khan, the founder of the Mongol Empire, and Börte, his primary wife. Around 1211, she was betrothed to Barchuq Art Tegin, the ruler of the wealthy Uyghur people. After Genghis died in 1227 and Al-Altan's brother Ögedei Khan ascended the throne, it is likely that the Mongol government began to appropriate Uyghur assets for themselves. Al-Altan was present when Ögedei died after an extended drinking binge in 1241; she was rumoured to have poisoned Ögedei in revenge for the appropriation, and she remained under suspicion until the accession of her nephew Güyük Khan five years later. Shortly afterwards, Al-Altan was put on trial and executed by the general Eljigidei; all records of her were heavily censored. The injustice of her death became a major contention during the Toluid Revolution in 1251, during which Eljigidei was executed by Al-Altan's sympathisers in revenge. (Full article...)