father death_date mother birth_date spouse article_title name reign
emperor xiaowu of jin 419 -lrb- aged 37 -rrb- empress dowager ande 382 empress anxi emperor an of jin
 sima dezong 6 november 397 -- 28 january 419
emperor an of jin

emperor an of jin -lrb- ; 382 -- 419 -rrb- , personal name sima dezong -lrb- 司馬德宗 -rrb- , was an emperor of the eastern jin dynasty -lrb- 265-420 -rrb- in china .
he was described as so developmentally disabled that he was unable to speak , clothe himself , or be able to express whether he was hungry or full .
he was created crown prince in 387 and ascended the throne in 397 .
because of his disability , the actual power was controlled by his uncle , sima daozi , prince of kuaiji .
during his reign , regents and warlords dominated the jin regime .
revolts by various governors also ravaged the land .
from 398 to 403 , there were constant revolts and civil war campaigns .
in 403 , the jin regime was usurped by the warlord huan xuan , and while emperor an was restored in 404 , the jin dynasty was nearing its end .
with the warlord liu yu as the actual power , jin destroyed southern yan and later qin , greatly expanding its territory .
however , with liu yu up in the north , the renegade governor of guang province -lrb- 廣州 , modern guangdong and guangxi -rrb- , lu xun , rebelled and threatened the capital city jiankang , before liu yu returned and crushed the revolt .
in 419 , emperor an was strangled under the order of liu yu and replaced with his brother emperor gong , who would be the last emperor of the dynasty , before liu yu would take the throne and establish the liu song dynasty .
