father death_date mother birth_date article_title name
emperor xiaowu of jin 421 -lrb- aged 35 -rrb- empress dowager andi 386 emperor gong of jin
 sima dewen
emperor gong of jin

emperor gong of jin -lrb- ; 386 -- 421 -rrb- was last emperor of the eastern jin dynasty -lrb- 265-420 -rrb- in china .
he became emperor in 419 after his developmentally disabled brother emperor an was killed by the regent liu yu , and during his brief reign , actual power was in liu yu 's hands .
in 420 , under pressure from liu yu , he yielded the throne to liu yu , ending jin 's existence .
liu yu founded liu song , and in 421 , believing that the former jin emperor posed a threat to his rule , had him asphyxiated with a blanket .
