Ayurbarwada Buyantu Khan

Ayurbarwada (1285–1320), titled Buyantu Khan and Emperor Renzong of Yuan, was the second son of Darmabala and a pupil of the Confucian Li Meng. He helped his brother Khayishan seize power in 1307, became crown prince and succeeded in 1311.

He reversed his brother's free-spending ways and in 1313 restored the Confucian civil service examinations, first held in 1315. He fought Chagatai khan Esen Buqa until the latter's death in 1318, and died in 1320, leaving the throne to his son Shidibala.