 Emperor Shengzong died in 1031 , leaving behind instructions that named his son Yelü <unk> as heir . Yelü <unk> , known historically by the name Emperor Xingzong of Liao , became the Emperor of the Liao dynasty at the age of fifteen , and his reign immediately became plagued with courtly infighting . Emperor Xingzong 's mother was a low @-@ ranking consort , Nuou Jin , but he was raised by Emperor Shengzong 's wife , Empress Ji Dian . Nuou Jin quickly moved to marginalize Ji Dian and her supporters , fabricating a coup and using it to justify exiling Ji Dian and executing most of her supporters in several months of purges . Nuou Jin eventually sent assassins to kill Ji Dian ; however , Ji Dian instead committed suicide . 
