What key details about emperor xianzong of tang can be extracted from the following bio? Bio: emperor xianzong of tang -lrb- -rrb- -lrb- 778 -- february 14 , 820 ; r. 805 -- 820 -rrb- , personal name li chun -lrb- -rrb- , ne li chun -lrb- -rrb- , was an emperor of the chinese tang dynasty . he was the eldest son of emperor shunzong , who reigned for less than a year in 805 and who yielded the throne to him late that year . once emperor , emperor xianzong set out to curb the power of the military governors -lrb- '' jiedushi '' -rrb- , and , when they would not heed his orders , he waged wars against them . his initial campaigns were quite successful , and xianzong 's army defeated warlords such as liu pi , yang huilin -lrb- -rrb- in 806 and li qi in 807 . in 813 , after the submission of one of the key holdouts , weibo circuit -lrb- , headquartered in modern handan , hebei -rrb- under tian xing , emperor xianzong appeared poised to reunite the empire , many parts of which had effectively been ruled independently by regional warlords . xianzong 's first setback was in 813 when he failed to defeat military governor wang chengzong . however , by 817 , after the defeat of li shidao and wang 's submission , all of the empire was under imperial authority again . later historians referred to emperor xianzong 's reign as the yuanhe restoration -lrb- -rrb- . emperor xianzong 's reign briefly stabilized tang from the destructive forces of the military governors , but saw the rise of the power of eunuchs . emperor xianzong himself was allegedly murdered by the eunuch chen hongzhi -lrb- -rrb- in 820 . -lrb- there were nagging suspicions , never proven , that xianzong 's wife consort guo and her son li heng -lrb- who succeeded xianzong as emperor muzong -rrb- were involved . -rrb-
The answer to this question is:
- given name is chun 820 -- february 9 , 821 -lrb- -rrb- , -- february 14 ,- image is center- family name is li -lrb- -rrb-