Background

He was the eldest son of King Ilseong, his mother being of the Bak clan. He married the daughter of King Jima, making this a marriage of 8th degree consanguinity. He was the last of the Bak clan to rule over early Silla. Descendants of Bak Hyeokgeose would rule again near the end of Unified Silla.

Reign

Judging from the reports in the Samguk Sagi, Adalla's reign was a time of considerable expansion. Because Silla was still a small state, however, some scholars doubt the chronology, or attribute the territorial battles with the Seok clan, who replaced the Bak clan as Silla royalty after Adalla's reign.

He is said to have opened the road over Haneuljae (in present-day Mungyeong) in 157, and also the pass of Jungnyeong (in present-day Yeongju) in 159, extending Silla north of the Sobaek mountains.

Tensions increased with the rival Korean kingdom Baekje for harboring a Silla traitor. The Samguk Sagi reports 20,000 soldiers and 8,000 cavalry of Silla battled Baekje in 167.

During his reign, Adalla maintained peaceful relations with the Wa of Japan, who sent an envoy in 158. Himiko sent another envoy in 173.

Legacy

There is no record of his activities during the last decade of his reign. He died without a male heir, and was succeeded by the Seok clan.

Adalla's tomb is believed to lie next to those of two later kings of Bak Hyeokgeose's line, in the Samneung complex near Namsan in central Gyeongju.

治世

• 154年，任继元为伊飡。155年，任兴宣为一吉飡。

• 156年，设立鸡立岭路。157年，设立甘勿县、马山县。158年，设立竹岭路。

• 165年，阿飡吉宣谋划反叛，事迹败露后害怕被杀，便逃到百济。阿达罗向百济王要人不得，便攻百济。百济守城不出，新罗军粮尽而归。

• 167年，百济攻破新罗西部两座城池，俘获千馀人民。后阿达罗命一吉飡兴宣领兵两万击之，又亲自率八千骑兵，到达汉江。百济很害怕，便于新罗和平。

• 168年，伊飡继元去世，兴宣接任。170年，百济侵略边境。172年，任仇道为波珍飡、仇须兮为一吉飡。

• 173年，倭国女王卑弥呼遣使来聘问。

• 184年，阿达罗尼师今去世，国人立昔脱解子仇邹之子伐休尼师今为君主。

家庭

• 祖母：伊利生夫人

• 父：逸圣尼师今

• 母：支所礼王女

• 妻：内礼夫人朴氏（祗摩尼师今之女）

• 儿子：朴碧芳，世系为朴碧芳→朴武英→朴判得→朴光钦→朴美一→朴乃物→朴相建→朴仁烨→朴启辅→朴明信→朴贞环→朴露兼→朴楠善→朴金山→朴应瓒→朴德兴→朴大宁→朴尼淳→朴隆钊→朴之坤→朴成顺→朴锐谦→神德王朴景晖→景明王朴升英、景哀王朴魏膺兄弟