hanja rr article_title mr hangul
訥祇麻立干 nulji maripgan nulji of silla
 nulchi maripkan 눌지마립간
nulji of silla

nulji -lrb- reigned 417 -- 458 -rrb- was the nineteenth king -lrb- `` maripgan '' -rrb- of silla , one of the three kingdoms of korea .
he was the son of king naemul and lady boban , who was the daughter of king michu .
nulji married the daughter of king silseong of silla , who nonetheless exiled nulji 's younger brothers as hostages to goguryeo of northern korea and wa of japan .
silseong also plotted to have nulji killed , but with goguryeo aid , nulji was able to kill silseong in 417 , after which he ascended to the throne .
according to one story , in 418 nulji sent a loyal retainer named bak je-sang to rescue his brothers from goguryeo and wa .
he was successful in retrieving the brother who was held in goguryeo , but he was captured while trying to rescue the one held by wa .
refusing to serve the wa king , he died under torture .
the story of bak 's loyalty has endured as a popular korean morality tale .
after these difficult events , nulji worked to free silla from goguryeo domination .
he set up diplomatic relations with goguryeo on an equal footing in 424 , and established a military alliance with baekje in 433 to help counter the goguryeo threat .
-lrb- hangul : 나제동맹 ; hanja : 羅濟同盟 -rrb- nulji 's reign saw the continuation of a long process of centralization in silla , marked his father 's change of his title to `` maripgan '' -lrb- 마립간 , 麻立干 -rrb- , which is believed to represent a higher level of authority than the previous title `` isageum '' -lrb- 이사금 , 尼師今 -rrb- .
under nulji 's rule , patrilineal succession was officially established -lrb- yang , 1999 , p. 16 -rrb- .
after his death in 458 , he was succeeded by his son jabi , rather than by his brother .
