Gegeen Khan, born Shidibala, also known by his temple name as the Emperor Yingzong of Yuan, was an emperor of the Yuan dynasty of China. Apart from Emperor of China, he is regarded as the ninth Great Khan of the Mongol Empire, although it was only nominal due to the division of the empire. His personal name "Shidibala" in Sanskrit means "purity protection" and his regnal name "Gegeen Khan" means "enlightened/bright khan" in the Mongolian language.

Yesün Temür was a great-grandson of Kublai Khan and an emperor of the Yuan dynasty of China from 1323 to 1328. Apart from Emperor of China, he is regarded as the 10th Khagan of the Mongol Empire, although it was only nominal due to the division of the empire. In Chinese historiography, Yesün Temür, who was very fond of the traditional ways of the Mongols, is commonly known as the Taiding Emperor of Yuan based on his first era name. His name means "nine iron" in the Mongolian language.